--- title: "Singapore to Washington cheap flights from $508 (SIN to IAD) - Expedia" description: "Book cheap Flights from Singapore (SIN) to Washington (IAD) start at $508 for one-way and $1,173 for round trip. Earn your airline miles on top of our rewards!" canonical: "https://www.expedia.com/lp/flights/sin/iad/singapore-to-washington" language: en-US market: US currency: USD prices_as_of: 2026-11-13T10:28:37Z --- # $508 Cheap Flights from Singapore (SIN) to Washington (IAD) ![A modern airport control tower with a spherical top and a curved, white-roofed building in the foreground.](https://images.trvl-media.com/place/4473161/a816c84d-81e5-4917-97c3-fb76eec1ff91.jpg?impolicy=fcrop&w=1200&h=500&q=medium) [View $508 flight on Sun, Dec 20, 2026](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:12/20/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:507.99&airProductToken=AQpkCjEIxbIBEgM0OTkYkmoggD0oraWgAzD0qKADOFRAAFgBagZZQkFTSUNyCFROTjEwSDVUCi8IxbIBEgE1GIA9IIgYKPOqoAMw6LGgAzhUQAFYAWoGWUJBU0lDcghUTk4xMEg1VBIMCAEQARgBKgJFWTIAGAEiBAgBEAEoAigDKAQwAQ) Photo by Metropolitan Washington Airports Authority ## Popular airlines from Singapore Changi Airport (SIN) to Washington Dulles Intl. Airport (IAD) [Swiss International Air Lines](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:11/27/2026TANYT&leg2=from:IAD,to:SIN,departure:12/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LX"}}]) [Turkish Airlines](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:11/27/2026TANYT&leg2=from:IAD,to:SIN,departure:12/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"TK"}}]) [Emirates](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:11/27/2026TANYT&leg2=from:IAD,to:SIN,departure:12/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EK"}}]) [British Airways](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:11/27/2026TANYT&leg2=from:IAD,to:SIN,departure:12/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) [Qatar Airways](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:11/27/2026TANYT&leg2=from:IAD,to:SIN,departure:12/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"QR"}}]) [Etihad Airways](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:11/27/2026TANYT&leg2=from:IAD,to:SIN,departure:12/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EY"}}]) [Lufthansa](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:11/27/2026TANYT&leg2=from:IAD,to:SIN,departure:12/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) ### Be in the know Get alerts if flight prices drop or rise\* ### Book smarter Save up to 30% on select hotels after you book a flight\* ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) Find the cheapest flights on Expedia from (SIN) to (IAD). Flight ticket prices change frequently based on availability and demand. We send price‑drop alerts to make air travel simple and flexible. The lowest one-way fare found on Expedia for this route in the past 7 days starts at $508 for travel on December 20, 2026. ## Cheap Flights from Singapore to Washington (SIN-IAD) Prices were available within the past 7 days and start at $508 for one-way flights and $1,173 for roundtrip, for the period specified. Prices and availability are subject to change. All deals One way Roundtrip [Select Etihad Airways flight, departing Sun, Dec 27 from Singapore to Washington, returning Tue, Jan 12, priced at $1,173 Found 8 hours ago](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:12/27/2026TANYT&leg2=from:IAD,to:SIN,departure:1/12/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1172.99&airProductToken=AQpkCjEIxbIBEgM0OTkYkmoggD0ojfSgAzDU96ADOFRAAFgBagZZQkFTSUNyCFROTjEwSDVUCi8IxbIBEgE1GIA9IIgYKNP5oAMwyIChAzhUQAFYAWoGWUJBU0lDcghUTk4xMEg1VBIKCAEQARgBKgJFWRgBIgQIARABKAIoAygEMAE) Sun, Dec 27 - Tue, Jan 12 · SIN · IAD · Roundtrip [Select Etihad Airways flight, departing Tue, Dec 22 from Singapore to Washington, returning Mon, Jan 4, priced at $1,195 Found 5 days ago](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:12/22/2026TANYT&leg2=from:IAD,to:SIN,departure:1/4/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1194.59&airProductToken=AQpkCjEIxbIBEgM0OTkYkmoggD0o7bugAzC0v6ADOFRAAFgBagZZQkFTSUNyCFROTjEwSDVUCi8IxbIBEgE1GIA9IIgYKLPBoAMwqMigAzhUQAFYAWoGWUJBU0lDcghUTk4xMEg1VBIKCAEQARgBKgJFWRgBIgQIARABKAIoAygEMAE) Tue, Dec 22 - Mon, Jan 4 · SIN · IAD · Roundtrip [Select Turkish Airlines flight, departing Sun, Nov 15 from Singapore to Washington, returning Mon, Nov 30, priced at $1,224 Found 1 hour ago](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:11/15/2026TANYT&leg2=from:IAD,to:SIN,departure:11/30/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1223.89&airProductToken=AQpcCiwI1JYBEgMyMDkYkmogyJwBKLGXnQMw95ydAzhXQABYAWoCQ0xyBldNQ0xSMAosCNSWARIDMTg3GMicASCIGCiKpJ0DMK2pnQM4V0ABWAFqAkNMcgZXTUNMUjAKXAosCNSWARIDMTg4GIgYIMicASjWx54DMJrMngM4V0AAWAFqAkNMcgZXTUNMUjAKLAjUlgESAzIwOBjInAEgkmoox9GeAzC41p4DOFdAAVgBagJDTHIGV01DTFIwEgoIARABGAEqAlRLGAEiBAgBEAEoAigDKAQwAQ) Sun, Nov 15 - Mon, Nov 30 · SIN · IAD · Roundtrip [Select United flight, departing Tue, Nov 24 from Singapore to Washington, returning Wed, Nov 25, priced at $1,242 Found 8 hours ago](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:11/24/2026TANYT&leg2=from:IAD,to:SIN,departure:11/25/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1241.59&airProductToken=AQqmAQo0CNWCARICMjgYkmogsnEonIKeAzCbiZ4DOEtAAFgBagoxX2Jhc2ljZWNvcghLTEE0UlNCOQo2CNWCARIEMTk3MRiycSCuHCj1iZ4DMPaLngM4S0AAWAFqCjFfYmFzaWNlY29yCEtMQTRSU0I5CjYI1YIBEgQxMDU1GK4cIIgYKKuMngMwnY2eAzhMQABYAWoKMV9iYXNpY2Vjb3IITExYOVJTQkkKbQo2CNWCARIEMTc1NxiIGCCycSiukZ4DMJOUngM4TEAAWAFqCjFfYmFzaWNlY29yCExMWDlSU0JJCjMI1YIBEgExGLJxIJJqKJCVngMwoJ2eAzhMQABYAWoKMV9iYXNpY2Vjb3IITExYOVJTQkkSCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAL) Tue, Nov 24 - Wed, Nov 25 · SIN · IAD · Roundtrip [Select Saudi Arabian Airlines flight, departing Thu, May 27 from Singapore to Washington, returning Sat, Jun 12, priced at $1,271 Found 1 day ago](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:5/27/2027TANYT&leg2=from:IAD,to:SIN,departure:6/12/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1270.81&airProductToken=AQpnCjII06wBEgM4NTcYkmogiRko7I6uAzCIk64DOE5AAFgBagdOQkFTSUNFcghOQVJYU0dCNAoxCNOsARICMzUYiRkgiBgovJSuAzDcmq4DOE5AAVgBagdOQkFTSUNFcghOQVJYU0dCNApnCjEI06wBEgIzNhiIGCCJGSia0K8DMO%5FVrwM4TkAAWAFqB05CQVNJQ0VyCE5BUlhTR0I0CjII06wBEgM4NTYYiRkgkmooiNuvAzDC368DOE5AAVgBagdOQkFTSUNFcghOQVJYU0dCNBIKCAEQARgBKgJTVhgBIgQIARABKAIoBCgGMAE) Thu, May 27 - Sat, Jun 12 · SIN · IAD · Roundtrip [Select Starlux Airlines flight, departing Fri, Oct 1 from Singapore to Washington, returning Sun, Oct 3, priced at $1,323 Found 8 hours ago](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:10/1/2027TANYT&leg2=from:IAD,to:SIN,departure:10/3/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1322.09&airProductToken=AQqHAQonCMqwARIDNzcyGJJqIPMjKIipuQMwqqu5AzhOQABYAXIGTlNHSlQ3CiYIyrABEgIzMhjzIyCSASj6q7kDMI6xuQM4TkABWAFyBk5TR0pUNwo0CMqwARIENzA3MhiSASCIGCjOs7kDMPu1uQM4TkABWAFyBk5TR0pUN3oKCMGmARIEMTYxNAqGAQozCMqwARIENzA3MxiIGCCSASjEx7kDMKDKuQM4U0AAWAFyBk5TR0pUN3oJCMGmARIDNzM3CiYIyrABEgIzMRiSASDzIyjvy7kDMOfRuQM4TkABWAFyBk5TR0pUNwonCMqwARIDNzcxGPMjIJJqKKDTuQMwuNW5AzhOQAFYAXIGTlNHSlQ3EgoIARABGAEqAkpYGAEiBAgBEAEoAigEKAYwAQ) Fri, Oct 1 - Sun, Oct 3 · SIN · IAD · Roundtrip [Select Air Canada flight, departing Mon, Jun 14 from Singapore to Washington, returning Wed, Jun 30, priced at $1,340 Found 12 hours ago](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:6/14/2027TANYT&leg2=from:IAD,to:SIN,departure:6/30/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1339.49&airProductToken=AQqsAQpACMGGARIENjI0NxiSaiCtnAEol9uvAzDK3q8DOEtAAFgBaghTVEFOREFSRHIIS0xYSjgxVEd6CQjOkAESAzgwMgoyCMGGARIBNhitnAEgmF0og-CvAzDs5a8DOEtAAVgBaghTVEFOREFSRHIIS0xYSjgxVEcKNAjBhgESBDg3MjcYmF0giBgosuavAzCo568DOEtAAVgBaghTVEFOREFSRHIIS0xYSjgxVEcKrAEKNAjBhgESBDg3MjQYiBggmF0ow5axAzCpl7EDOEdAAFgBaghTVEFOREFSRHIIR0FZUzExVEcKMgjBhgESATUYmF0grZwBKIGYsQMwoZ6xAzhHQAFYAWoIU1RBTkRBUkRyCEdBWVMxMVRHCkAIwYYBEgQ2MjQ2GK2cASCSaijkn7EDMI2jsQM4R0ABWAFqCFNUQU5EQVJEcghHQVlTMTFUR3oJCM6QARIDODAxEgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwDQ) Mon, Jun 14 - Wed, Jun 30 · SIN · IAD · Roundtrip [Select EVA Airways flight, departing Sun, Nov 15 from Singapore to Washington, returning Mon, Nov 30, priced at $1,454 Found 1 hour ago](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:11/15/2026TANYT&leg2=from:IAD,to:SIN,departure:11/30/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1453.69&airProductToken=AQpeCi4IwqQBEgMyMTYYkmog8yMo8ZmdAzD%5Fm50DOFZAAFgBagdFWUJBU0lDcgRWTFNHCiwIwqQBEgE0GPMjIIgYKPKmnQMw062dAzhWQAFYAWoHRVlCQVNJQ3IEVkxTRwpeCiwIwqQBEgEzGIgYIPMjKMfMngMwzdSeAzhWQABYAWoHRVlCQVNJQ3IEVkxTRwouCMKkARIDMjI1GPMjIJJqKJ3VngMwtdeeAzhWQAFYAWoHRVlCQVNJQ3IEVkxTRxIKCAEQARgBKgJCUhgBIgQIARABKAIoBCgGMAE) Sun, Nov 15 - Mon, Nov 30 · SIN · IAD · Roundtrip [Select Korean Air flight, departing Mon, Mar 8 from Singapore to Washington, returning Mon, Mar 22, priced at $1,527 Found 9 hours ago](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:3/8/2027TANYT&leg2=from:IAD,to:SIN,departure:3/22/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1526.29&airProductToken=AQpnCjIIy4oBEgM2NDgYkmogyGgo1o6nAzDmkacDOFVAAFgBagdFWVNBVkVScghVTFgwWkhFSwoxCMuKARICOTMYyGggiBgoq5mnAzDan6cDOFVAAVgBagdFWVNBVkVScghVTFgwWkhFSwpnCjEIy4oBEgI5NBiIGCDIaCjysqgDMKi6qAM4VUAAWAFqB0VZU0FWRVJyCFVMWDBaSEVLCjIIy4oBEgM2NDcYyGggkmoo97yoAzCMwKgDOFVAAVgBagdFWVNBVkVScghVTFgwWkhFSxIMCAEQARgBKgJLRTIAGAEiBAgBEAEoAigEKAYwAQ) Mon, Mar 8 - Mon, Mar 22 · SIN · IAD · Roundtrip [Select Delta flight, departing Sun, Dec 27 from Singapore to Washington, returning Tue, Jan 12, priced at $1,536 Found 8 hours ago](https://www.expedia.com/Flights-Search?leg1=from:SIN,to:IAD,departure:12/27/2026TANYT&leg2=from:IAD,to:SIN,departure:1/12/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:1535.09&airProductToken=AQqxAQpACMSYARIENzgyMBiSaiDIaCjG9aADML34oAM4RUAAWAFqCU1BSU5CQVNJQ3IIVExYMFpIRUt6CQjLigESAzY0NAo1CMSYARIDMTU4GMhoIOO0ASij-qADMLCAoQM4RUABWAFqCU1BSU5CQVNJQ3IIVExYMFpIRUsKNgjEmAESBDU1MTcY47QBIIgYKJOBoQMw-IGhAzhFQAFYAWoJTUFJTkJBU0lDcghUTFgwWkhFSwqvAQo1CMSYARIENDkwMxiIGCDMfCi6qKIDMPOpogM4RUAAWAFqCU1BSU5CQVNJQ3IIVExYMFpIRUsKNAjEmAESAzE3MRjMfCDIaCjDqqIDMJqxogM4RUABWAFqCU1BSU5CQVNJQ3IIVExYMFpIRUsKQAjEmAESBDc4MjEYyGggkmoov7KiAzDPtaIDOEVAAVgBaglNQUlOQkFTSUNyCFRMWDBaSEVLegkIy4oBEgM2NDUSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) Sun, Dec 27 - Tue, Jan 12 · SIN · IAD · Roundtrip ## Book with confidence ### Singapore to Washington Flights #### The cheapest times to fly from Singapore to Washington On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Singapore to Washington are during the month of December. You can find some of the cheapest flights from Singapore to Washington with Expedia's search tool and vast selection of airlines. #### The best time to book a flight from Singapore to Washington Sunday is one of the best days to book for cheap flights from Singapore to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance. #### How to find cheap round-trip tickets from Singapore to Washington Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Singapore to Washington in 2026\. You can also book with separate airlines for your outbound and return journeys, from $508 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference\*. This is available for a small fee, and is free to One Key Gold and Platinum tier members. Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Singapore to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps. You could also save big by booking one of Expedia's [vacation packages](https://www.expedia.com/package-deals). Bundling together your Singapore to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures. *\*Terms apply.* *Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages.* ## Frequently Asked Questions ### How much does a flight from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) cost? You can find cheap one-way flights from $508 and cheap return flights $1,173 Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) with Expedia. One-way flights usually range from $836 to $6000, and return flights typically cost between $1186 and $9956\. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) ticket fares go up or down. *\*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.* ### What is the cheapest month to fly from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)? The cheapest month to fly from SIN to IAD is December when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route. ### Which airlines fly direct from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)? Enter SIN to IAD and your travel dates, then apply the 'Nonstop' filter to see only direct flights. ### What is the cheapest airline that flies from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)? Starlux Airlines is one of the cheapest airlines offering connecting flights from Singapore (SIN) to Washington, DC (IAD), with round-trip tickets starting from around $1,447 with a layover in Taoyuan Intl. (TPE). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget. *\*Prices based on flights available on Expedia in the last year.* ### How do I find cheap flights from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)? To find a cheap flight from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up [Price Tracking](https://www.expedia.com/why/price-tracking) and receive alerts when fares go up or down. ### What is the best time to fly from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)? The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience. ### What is the earliest flight from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)? The earliest flight from Singapore (SIN) to Washington, DC (IAD) typically departs at around 12:05 AM, operated by Swiss International Air Lines. This is a seasonal service active in January, February, October, and November. An early departure like this can help you maximize your time in Washington. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search. ### What are the most popular departure times for flights from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)? The most popular departure times for flights from Changi Airport (SIN) to Washington Dulles International Airport (IAD) are in the late evening, from 9pm to midnight. About 44% of passengers prefer this time window. Many major carriers, including United Airlines, Emirates, and All Nippon Airways, operate flights during this time, making it a good option for travelers looking to depart after a full day. ### How long does it take to fly from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)? A flight from SIN to IAD with a layover takes around 23 hours 50 minutes, with the route covering approximately 9,651 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic. ### Can you fly business or first class from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)? Business class seats are offered on the SIN to IAD route. Airlines that offer business class service on this route include: - Swiss International Air Lines - Malaysia Airlines - Singapore Airlines - Etihad Airways - Lufthansa - Korean Air - Emirates - Batik Air - All Nippon Airways - Turkish Airlines First class cabins are available on: - Swiss International Air Lines - Singapore Airlines - Emirates - British Airways - Lufthansa ### How do I earn miles on a Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia? It's easy to earn miles on a Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of [One Key™](https://www.expedia.com/welcome-one-key), you can also earn OneKeyCash™\* on top of your airline miles when you book with Expedia. \*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands. ### What airports do you fly into for Washington from Changi (SIN)? From Changi (SIN), you can fly into Ronald Reagan Washington National (DCA) and Washington Dulles Intl. (IAD) in Washington. Some flights may connect through major hubs like Hong Kong Intl. (HKG), Vancouver Intl. (YVR), Haneda (HND) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans. ### Is it cheaper to buy a plane ticket from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute? Typically, booking a last minute flight from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare. ### Is it cheaper to book a Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package? Securing a Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) [Fairfax County Vacation Packages](https://www.expedia.com/chantilly.d8638.destination-travel-guides) is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars. ### Can I cancel or change the date of my flight from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)? If you booked your Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in [your itinerary](https://www.expedia.com/trips) or confirmation email. Or, head to our [Customer Service portal](https://www.expedia.com/helpcenter/) if you'd like more information. ## Travel information | Origin airport | Singapore Changi Airport | | ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | Destination airport | Washington Dulles Intl. Airport | | Distance | 9,649 miles away | | Airlines serving | Swiss International Air Lines, Turkish Airlines, Emirates, British Airways, Qatar Airways, Etihad Airways, Lufthansa, American Airlines, Air France, KLM, Korean Air, Air Canada, JetBlue Airways, All Nippon Airways, Delta, Ethiopian Airlines, Starlux Airlines, EVA Airways, United, Austrian Airlines, Japan Airlines, Saudi Arabian Airlines, Alaska Airlines, Air China, Cathay Pacific, IndiGo | | Popular airline | Swiss International Air Lines | | Roundtrip price | $1,173 | ## Explore a world of travel with Expedia - [Flights](?equalTargetTab=tab-0) - [Flights from Mumbai (BOM) to Washington (IAD)](https://www.expedia.com/lp/flights/bom/iad/mumbai-to-washington) - [Flights from Kansas City (MCI) to Washington (IAD)](https://www.expedia.com/lp/flights/mci/iad/kansas-city-to-washington) - [Flights from Dallas (DFW) to Washington (DCA)](https://www.expedia.com/lp/flights/dfw/dca/dallas-to-washington) - [Flights from Atlanta (ATL) to Washington (IAD)](https://www.expedia.com/lp/flights/atl/iad/atlanta-to-washington) - [Flights from Indianapolis (IND) to Washington (IAD)](https://www.expedia.com/lp/flights/ind/iad/indianapolis-to-washington) - [Flights from Seattle (SEA) to Washington (IAD)](https://www.expedia.com/lp/flights/sea/iad/seattle-to-washington) - [Flights from Salt Lake City (SLC) to Washington (IAD)](https://www.expedia.com/lp/flights/slc/iad/salt-lake-city-to-washington) - [Flights from Manila (MNL) to Washington (IAD)](https://www.expedia.com/lp/flights/mnl/iad/manila-to-washington) - [Flights from Los Angeles (LAX) to Washington (DCA)](https://www.expedia.com/lp/flights/lax/dca/los-angeles-to-washington) - [Flights from Islamabad (ISB) to Washington (IAD)](https://www.expedia.com/lp/flights/isb/iad/islamabad-to-washington) - [Flights from Newark Liberty Intl. Airport (EWR) to Washington (IAD)](https://www.expedia.com/lp/flights/ewr/iad/newark-liberty-intl-airport-to-washington) - [Flights from San Diego (SAN) to Washington (IAD)](https://www.expedia.com/lp/flights/san/iad/san-diego-to-washington) - [Flights from Los Angeles (LAX) to Washington (IAD)](https://www.expedia.com/lp/flights/lax/iad/los-angeles-to-washington) - [Flights from St. Louis (STL) to Washington (IAD)](https://www.expedia.com/lp/flights/stl/iad/st-louis-to-washington) - [Flights from Sacramento (SMF) to Washington (IAD)](https://www.expedia.com/lp/flights/smf/iad/sacramento-to-washington) - [Flights from Boston (BOS) to Washington (IAD)](https://www.expedia.com/lp/flights/bos/iad/boston-to-washington) - [Flights from Nashville (BNA) to Washington (IAD)](https://www.expedia.com/lp/flights/bna/iad/nashville-to-washington) - [Flights from Pittsburgh (PIT) to Washington (IAD)](https://www.expedia.com/lp/flights/pit/iad/pittsburgh-to-washington) - [Flights from Chicago (ORD) to Washington (DCA)](https://www.expedia.com/lp/flights/ord/dca/chicago-to-washington) - [Flights from Amman (AMM) to Washington (IAD)](https://www.expedia.com/lp/flights/amm/iad/amman-to-washington) - [Flights from Fort Lauderdale (FLL) to Washington (IAD)](https://www.expedia.com/lp/flights/fll/iad/fort-lauderdale-to-washington) - [Flights from Rome (FCO) to Washington (IAD)](https://www.expedia.com/lp/flights/fco/iad/rome-to-washington) - [Flights from Kathmandu (KTM) to Washington (IAD)](https://www.expedia.com/lp/flights/ktm/iad/kathmandu-to-washington) - [Flights from Charlotte (CLT) to Washington (IAD)](https://www.expedia.com/lp/flights/clt/iad/charlotte-to-washington) - [Flights from London (LHR) to Washington (IAD)](https://www.expedia.com/lp/flights/lhr/iad/london-to-washington) - [Flights from Minneapolis (MSP) to Washington (DCA)](https://www.expedia.com/lp/flights/msp/dca/minneapolis-to-washington) - [Flights from Seoul (ICN) to Washington (IAD)](https://www.expedia.com/lp/flights/icn/iad/seoul-to-washington) - [Flights from Toronto (YYZ) to Washington (IAD)](https://www.expedia.com/lp/flights/yyz/iad/toronto-to-washington) - [Flights from Dubai (DXB) to Washington (IAD)](https://www.expedia.com/lp/flights/dxb/iad/dubai-to-washington) - [Flights from Atlanta (ATL) to Washington (DCA)](https://www.expedia.com/lp/flights/atl/dca/atlanta-to-washington) - [Flights from Orlando (MCO) to Washington (IAD)](https://www.expedia.com/lp/flights/mco/iad/orlando-to-washington) - [Flights from Houston (IAH) to Washington (IAD)](https://www.expedia.com/lp/flights/iah/iad/houston-to-washington) - [Flights from Prague (PRG) to Washington (IAD)](https://www.expedia.com/lp/flights/prg/iad/prague-to-washington) - [Flights from Newark Liberty Intl. Airport (EWR) to Washington (DCA)](https://www.expedia.com/lp/flights/ewr/dca/newark-liberty-intl-airport-to-washington) - [Flights from Nairobi (NBO) to Washington (IAD)](https://www.expedia.com/lp/flights/nbo/iad/nairobi-to-washington) - [Flights from Miami (MIA) to Washington (DCA)](https://www.expedia.com/lp/flights/mia/dca/miami-to-washington) - [Flights from Hartford (BDL) to Washington (IAD)](https://www.expedia.com/lp/flights/bdl/iad/hartford-to-washington) - [Flights from San Jose (SJC) to Washington (IAD)](https://www.expedia.com/lp/flights/sjc/iad/san-jose-to-washington) - [Flights from Chicago (ORD) to Washington (IAD)](https://www.expedia.com/lp/flights/ord/iad/chicago-to-washington) - [Flights from Karachi (KHI) to Washington (IAD)](https://www.expedia.com/lp/flights/khi/iad/karachi-to-washington) - [Flights from Washington (DCA) to Washington (IAD)](https://www.expedia.com/lp/flights/dca/iad/washington-to-washington) - [Flights from Morgantown (MGW) to Washington (IAD)](https://www.expedia.com/lp/flights/mgw/iad/morgantown-to-washington) - [Flights from Austin (AUS) to Washington (IAD)](https://www.expedia.com/lp/flights/aus/iad/austin-to-washington) - [Flights from Munich (MUC) to Washington (IAD)](https://www.expedia.com/lp/flights/muc/iad/munich-to-washington) - [Flights from Detroit (DTW) to Washington (DCA)](https://www.expedia.com/lp/flights/dtw/dca/detroit-to-washington) - [Flights from Denver (DEN) to Washington (IAD)](https://www.expedia.com/lp/flights/den/iad/denver-to-washington) - [Flights from Cairo (CAI) to Washington (IAD)](https://www.expedia.com/lp/flights/cai/iad/cairo-to-washington) - [Flights from New York (LGA) to Washington (IAD)](https://www.expedia.com/lp/flights/lga/iad/new-york-to-washington) - [Flights from Orlando (MCO) to Washington (DCA)](https://www.expedia.com/lp/flights/mco/dca/orlando-to-washington) - [Flights from Honolulu (HNL) to Washington (IAD)](https://www.expedia.com/lp/flights/hnl/iad/honolulu-to-washington) - [Flights from Berlin (BER) to Washington (IAD)](https://www.expedia.com/lp/flights/ber/iad/berlin-to-washington) - [Flights from Frankfurt (FRA) to Washington (IAD)](https://www.expedia.com/lp/flights/fra/iad/frankfurt-to-washington) - [Flights from Amsterdam (AMS) to Washington (IAD)](https://www.expedia.com/lp/flights/ams/iad/amsterdam-to-washington) - [Flights from Jacksonville (JAX) to Washington (IAD)](https://www.expedia.com/lp/flights/jax/iad/jacksonville-to-washington) - [Flights from Ho Chi Minh City (SGN) to Washington (IAD)](https://www.expedia.com/lp/flights/sgn/iad/ho-chi-minh-city-to-washington) - [Flights from Delhi (DEL) to Washington (IAD)](https://www.expedia.com/lp/flights/del/iad/delhi-to-washington) - [Flights from Lagos (LOS) to Washington (IAD)](https://www.expedia.com/lp/flights/los/iad/lagos-to-washington) - [Flights from Baltimore (BWI) to Washington (IAD)](https://www.expedia.com/lp/flights/bwi/iad/baltimore-to-washington) - [Flights from Addis Ababa (ADD) to Washington (IAD)](https://www.expedia.com/lp/flights/add/iad/addis-ababa-to-washington) - [Flights from Dallas (DFW) to Washington (IAD)](https://www.expedia.com/lp/flights/dfw/iad/dallas-to-washington) - [Flights from Lahore (LHE) to Washington (IAD)](https://www.expedia.com/lp/flights/lhe/iad/lahore-to-washington) - [Flights from Columbus (CMH) to Washington (IAD)](https://www.expedia.com/lp/flights/cmh/iad/columbus-to-washington) - [Flights from Minneapolis (MSP) to Washington (IAD)](https://www.expedia.com/lp/flights/msp/iad/minneapolis-to-washington) - [Flights from Boston (BOS) to Washington (DCA)](https://www.expedia.com/lp/flights/bos/dca/boston-to-washington) - [Flights from Grand Rapids (GRR) to Washington (DCA)](https://www.expedia.com/lp/flights/grr/dca/grand-rapids-to-washington) - [Flights from Raleigh (RDU) to Washington (IAD)](https://www.expedia.com/lp/flights/rdu/iad/raleigh-to-washington) - [Flights from Paris (CDG) to Washington (IAD)](https://www.expedia.com/lp/flights/cdg/iad/paris-to-washington) - [Flights from Hyderabad (HYD) to Washington (IAD)](https://www.expedia.com/lp/flights/hyd/iad/hyderabad-to-washington) - [Flights from Reykjavik (KEF) to Washington (IAD)](https://www.expedia.com/lp/flights/kef/iad/reykjavik-to-washington) - [Flights from Dhaka (DAC) to Washington (IAD)](https://www.expedia.com/lp/flights/dac/iad/dhaka-to-washington) - [Flights from Charleston (CHS) to Washington (IAD)](https://www.expedia.com/lp/flights/chs/iad/charleston-to-washington) - [Flights from West Palm Beach (PBI) to Washington (DCA)](https://www.expedia.com/lp/flights/pbi/dca/west-palm-beach-to-washington) - [Flights from Beirut (BEY) to Washington (IAD)](https://www.expedia.com/lp/flights/bey/iad/beirut-to-washington) - [Flights from Barcelona (BCN) to Washington (IAD)](https://www.expedia.com/lp/flights/bcn/iad/barcelona-to-washington) - [Flights from Kansas City (MCI) to Washington (DCA)](https://www.expedia.com/lp/flights/mci/dca/kansas-city-to-washington) - [Flights from Tampa (TPA) to Washington (DCA)](https://www.expedia.com/lp/flights/tpa/dca/tampa-to-washington) - [Flights from Omaha (OMA) to Washington (IAD)](https://www.expedia.com/lp/flights/oma/iad/omaha-to-washington) - [Flights from Portland (PDX) to Washington (IAD)](https://www.expedia.com/lp/flights/pdx/iad/portland-to-washington) - [Flights from Cleveland (CLE) to Washington (IAD)](https://www.expedia.com/lp/flights/cle/iad/cleveland-to-washington) - [Flights from Charlotte (CLT) to Washington (DCA)](https://www.expedia.com/lp/flights/clt/dca/charlotte-to-washington) - [Flights from Tel Aviv (TLV) to Washington (IAD)](https://www.expedia.com/lp/flights/tlv/iad/tel-aviv-to-washington) - [Flights from Tampa (TPA) to Washington (IAD)](https://www.expedia.com/lp/flights/tpa/iad/tampa-to-washington) - [Flights from Cincinnati (CVG) to Washington (DCA)](https://www.expedia.com/lp/flights/cvg/dca/cincinnati-to-washington) - [Flights from Phoenix (PHX) to Washington (IAD)](https://www.expedia.com/lp/flights/phx/iad/phoenix-to-washington) - [Flights from Raleigh (RDU) to Washington (DCA)](https://www.expedia.com/lp/flights/rdu/dca/raleigh-to-washington) - [Flights from Seattle (SEA) to Washington (DCA)](https://www.expedia.com/lp/flights/sea/dca/seattle-to-washington) - [Flights from Miami (MIA) to Washington (IAD)](https://www.expedia.com/lp/flights/mia/iad/miami-to-washington) - [Flights from San Salvador (SAL) to Washington (IAD)](https://www.expedia.com/lp/flights/sal/iad/san-salvador-to-washington) - [Flights from Lisbon (LIS) to Washington (IAD)](https://www.expedia.com/lp/flights/lis/iad/lisbon-to-washington) - [Flights from Casablanca (CMN) to Washington (IAD)](https://www.expedia.com/lp/flights/cmn/iad/casablanca-to-washington) - [Flights from Cincinnati (CVG) to Washington (IAD)](https://www.expedia.com/lp/flights/cvg/iad/cincinnati-to-washington) - [Flights from Charleston (CHS) to Washington (DCA)](https://www.expedia.com/lp/flights/chs/dca/charleston-to-washington) - [Flights from New York (JFK) to Washington (IAD)](https://www.expedia.com/lp/flights/jfk/iad/new-york-to-washington) - [Flights from St. Louis (STL) to Washington (DCA)](https://www.expedia.com/lp/flights/stl/dca/st-louis-to-washington) - [Flights from New York (JFK) to Washington (DCA)](https://www.expedia.com/lp/flights/jfk/dca/new-york-to-washington) - [Flights from Las Vegas (LAS) to Washington (IAD)](https://www.expedia.com/lp/flights/las/iad/las-vegas-to-washington) - [Flights from San Francisco (SFO) to Washington (IAD)](https://www.expedia.com/lp/flights/sfo/iad/san-francisco-to-washington) - [Flights from Istanbul (IST) to Washington (IAD)](https://www.expedia.com/lp/flights/ist/iad/istanbul-to-washington) - [Flights from San Antonio (SAT) to Washington (IAD)](https://www.expedia.com/lp/flights/sat/iad/san-antonio-to-washington) - [Flights from Madrid (MAD) to Washington (IAD)](https://www.expedia.com/lp/flights/mad/iad/madrid-to-washington) \*Available to One Key members. ## Other language versions ```yaml hreflang: x-default: https://www.expedia.com/lp/flights/sin/iad/singapore-to-washington en-TW: https://www.expedia.com.tw/en/lp/flights/sin/iad/singapore-to-washington en-US: https://www.expedia.com/lp/flights/sin/iad/singapore-to-washington pt-BR: https://www.expedia.com.br/lp/voos/sin/iad/cingapura-para-washington en-TH: https://www.expedia.co.th/en/lp/flights/sin/iad/singapore-to-washington en-MY: https://www.expedia.com.my/lp/flights/sin/iad/singapore-to-washington es-MX: https://www.expedia.mx/lp/vuelos/sin/iad/singapur-a-washington nl-NL: https://www.expedia.nl/lp/vluchten/sin/iad/singapore-naar-washington en-GB: https://www.expedia.co.uk/lp/flights/sin/iad/singapore-to-washington zh-CN: https://www.expedia.com/cn/lp/flights/sin/iad/singapore-to-washington en-HK: https://www.expedia.com.hk/en/lp/flights/sin/iad/singapore-to-washington fr-FR: https://www.expedia.fr/lp/vols/sin/iad/singapour-a-washington th-TH: https://www.expedia.co.th/lp/flights/sin/iad/singapore-to-washington es: https://www.expedia.com/es/lp/vuelos/sin/iad/singapur-a-washington ja-JP: https://www.expedia.co.jp/lp/flights/sin/iad/singapore-to-washington nb-NO: https://www.expedia.no/lp/fly/sin/iad/singapore-til-washington ar: https://www.expedia.sa/lp/flights/sin/iad/singapore-to-washington sv-SE: https://www.expedia.se/lp/flyg/sin/iad/singapore-till-washington en-AU: https://www.expedia.com.au/lp/flights/sin/iad/singapore-to-washington en-JP: https://www.expedia.co.jp/en/lp/flights/sin/iad/singapore-to-washington en-SG: https://www.expedia.com.sg/lp/flights/sin/iad/singapore-to-washington ko-KR: https://www.expedia.co.kr/lp/flights/sin/iad/singapore-to-washington id-ID: https://www.expedia.co.id/lp/flights/sin/iad/singapura-to-washington en-KR: https://www.expedia.co.kr/en/lp/flights/sin/iad/singapore-to-washington ```