$692 Cheap Flights from Singapore (SIN) to Washington (DCA)

View $692 flight on Wed, Oct 21, 2026Opens in a new window

Popular airlines from Singapore Changi Airport (SIN) to Ronald Reagan Washington National Airport (DCA)

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Cheap Flights from Singapore to Washington (SIN-DCA)

Prices were available within the past 7 days and start at $692 for one-way flights and $1,158 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Sep 2 - Wed, Sep 9
SIN
Singapore
DCA
Washington
$1,158 Roundtrip, found 3 days ago
$1,158
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 2 from Singapore to Washington, returning Wed, Sep 9, priced at $1,158 found 3 days ago
Japan Airlines
Fri, Aug 28 - Sat, Aug 29
SIN
Singapore
DCA
Washington
$1,198 Roundtrip, found 3 days ago
$1,198
Roundtrip
found 3 days ago
Select Japan Airlines flight, departing Fri, Aug 28 from Singapore to Washington, returning Sat, Aug 29, priced at $1,198 found 3 days ago
Japan Airlines
Fri, Aug 28 - Tue, Sep 1
SIN
Singapore
DCA
Washington
$1,201 Roundtrip, found 3 days ago
$1,201
Roundtrip
found 3 days ago
Select Japan Airlines flight, departing Fri, Aug 28 from Singapore to Washington, returning Tue, Sep 1, priced at $1,201 found 3 days ago
Japan Airlines
Wed, Apr 8 - Thu, Apr 16
SIN
Singapore
DCA
Washington
$1,204 Roundtrip, found 4 days ago
$1,204
Roundtrip
found 4 days ago
Select Japan Airlines flight, departing Wed, Apr 8 from Singapore to Washington, returning Thu, Apr 16, priced at $1,204 found 4 days ago
EVA Airways
Mon, Mar 16 - Mon, Mar 23
SIN
Singapore
DCA
Washington
$1,229 Roundtrip, found 4 days ago
$1,229
Roundtrip
found 4 days ago
Select EVA Airways flight, departing Mon, Mar 16 from Singapore to Washington, returning Mon, Mar 23, priced at $1,229 found 4 days ago
Japan Airlines
Wed, Sep 2 - Wed, Sep 9
SIN
Singapore
DCA
Washington
$1,242 Roundtrip, found 3 days ago
$1,242
Roundtrip
found 3 days ago
Select Japan Airlines flight, departing Wed, Sep 2 from Singapore to Washington, returning Wed, Sep 9, priced at $1,242 found 3 days ago
United
Sun, Mar 8 - Fri, Mar 13
SIN
Singapore
DCA
Washington
$1,242 Roundtrip, found 22 hours ago
$1,242
Roundtrip
found 22 hours ago
Select United flight, departing Sun, Mar 8 from Singapore to Washington, returning Fri, Mar 13, priced at $1,242 found 22 hours ago
Japan Airlines
Sat, Aug 29 - Sun, Aug 30
SIN
Singapore
DCA
Washington
$1,258 Roundtrip, found 3 days ago
$1,258
Roundtrip
found 3 days ago
Select Japan Airlines flight, departing Sat, Aug 29 from Singapore to Washington, returning Sun, Aug 30, priced at $1,258 found 3 days ago
Qantas Airways
Sun, Feb 22 - Mon, Mar 2
SIN
Singapore
DCA
Washington
$1,273 Roundtrip, found 2 days ago
$1,273
Roundtrip
found 2 days ago
Select Qantas Airways flight, departing Sun, Feb 22 from Singapore to Washington, returning Mon, Mar 2, priced at $1,273 found 2 days ago
American Airlines
Wed, Sep 2 - Wed, Sep 9
SIN
Singapore
DCA
Washington
$1,281 Roundtrip, found 3 days ago
$1,281
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Sep 2 from Singapore to Washington, returning Wed, Sep 9, priced at $1,281 found 3 days ago

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Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Washington Dulles Intl. IAD. Cheapest option available. Average driving time to city center is 36 minutes. Flights from $1,154
IAD
Washington Dulles Intl.
Cheapest
Average driving time to city center36 min
Flights from $1,154

Frequently asked questions

How much does a flight from Singapore (SIN-Changi) to Washington, DC (DCA-Ronald Reagan Washington National) cost?
You can find cheap one-way flights from $692 and cheap return flights from $1,158 Singapore (SIN-Changi) to Washington, DC (DCA-Ronald Reagan Washington National) with Expedia. One-way flights generally range between $739 and $3910. 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 (DCA-Ronald Reagan Washington National) 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 (DCA-Ronald Reagan Washington National)?
The cheapest month to fly from SIN to DCA is September 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 (DCA-Ronald Reagan Washington National)?
Enter SIN to DCA 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 (DCA-Ronald Reagan Washington National)?
Cathay Pacific, Japan Airlines and Qatar Airways are just some of the carriers that fly from Singapore (SIN-Changi) to Washington, DC (DCA-Ronald Reagan Washington National). Use Expedia's flight search tool to compare airlines on this route and find our cheapest option for your trip. 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 (DCA-Ronald Reagan Washington National)?
To find a cheap flight from Singapore (SIN-Changi) to Washington, DC (DCA-Ronald Reagan Washington National), 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 and receive alerts when fares go up or down.
What is the best time to fly from Singapore (SIN-Changi) to Washington, DC (DCA-Ronald Reagan Washington National)?
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 (DCA-Ronald Reagan Washington National)?
The earliest flight from Changi Airport (SIN) to Ronald Reagan Washington National Airport (DCA) typically departs at around 12:05 AM local time, operated by Swiss International Air Lines and Air Canada. This is a seasonal service active in February and November, and an early flight allows you to start your day in Washington, DC. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Singapore (SIN-Changi) to Washington, DC (DCA-Ronald Reagan Washington National)?
Flights from SIN to DCA with one stop typically take around 23 hours 50 minutes, covering approximately 9,659 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 (DCA-Ronald Reagan Washington National)?
Business class is available on flights from SIN to DCA. Airlines that offer business class service on this route include:

  • Asiana Airlines
  • Cathay Pacific
  • Emirates
  • Lufthansa
  • Swiss International Air Lines
  • Korean Air
  • Air Canada
  • Singapore Airlines
  • Qatar Airways

First class is available with Japan Airlines.
How do I earn miles on a Singapore (SIN-Changi) to Washington, DC (DCA-Ronald Reagan Washington National) flight with Expedia?
It's easy to earn miles on a Singapore (SIN-Changi) to Washington, DC (DCA-Ronald Reagan Washington National) 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™, 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)?
When traveling from Changi (SIN) to Washington, you can fly into Ronald Reagan Washington National (DCA) and Washington Dulles Intl. (IAD). 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 (DCA-Ronald Reagan Washington National) at the last minute?
Typically, booking a last minute flight from Singapore (SIN-Changi) to Washington, DC (DCA-Ronald Reagan Washington National) 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 (DCA-Ronald Reagan Washington National) flight and hotel package?
Securing a Singapore (SIN-Changi) to Washington, DC (DCA-Ronald Reagan Washington National) Washington Vacation Packages 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 (DCA-Ronald Reagan Washington National)?
If you booked your Singapore (SIN-Changi) to Washington, DC (DCA-Ronald Reagan Washington National) 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 or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Changi
Destination airport
Ronald Reagan Washington National
Airlines serving
Air Canada, All Nippon Airways, British Airways, Cathay Pacific, Emirates, Finnair, Japan Airlines, Korean Air, Qantas Airways, Qatar Airways, United
Roundtrip price
$1,158
Distance
9657 mi

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 September. 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 $692 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. 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.

 

Singapore to Washington Flights

*Flight schedules are subject to change.

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*Available to One Key members.