Cheap Flights from Singapore (XSP) to Washington (IAD)

Popular airlines from Seletar Airport (XSP) to Washington Dulles Intl. Airport (IAD)

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Frequently asked questions

How much does a flight from Seletar Airport (XSP) to Washington Dulles Intl. Airport (IAD) cost?
Lock in a cheap one-way flight or cheap return flight from Seletar Airport (XSP) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Seletar Airport (XSP) to Washington Dulles Intl. Airport (IAD)?
is the most affordable month to fly from XSP to IAD. Traveling outside of peak seasons is often the key to landing a great deal.
What is the cheapest airline that flies from Seletar Airport (XSP) to Washington Dulles Intl. Airport (IAD)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll take you from XSP to IAD. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Seletar Airport (XSP) to Washington Dulles Intl. Airport (IAD)?
Direct flights from Seletar Airport (XSP) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from XSP to IAD?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seletar Airport (XSP) to Washington Dulles Intl. Airport (IAD)?
To arrive at Washington Dulles Intl. Airport (IAD) on time, opt for a flight that leaves from Seletar Airport (XSP) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seletar Airport (XSP) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your plane ticket from XSP to IAD just before your trip is generally more expensive. However, if you're flexible with your travel dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a XSP to IAD flight and hotel package?
Compared with arranging flights and hotels separately, booking a XSP to IAD flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the stress out of travel planning. Simply pick your flights and choose from our wide range of stays, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Seletar Airport (XSP) to Washington Dulles Intl. Airport (IAD)?
If you reserved your XSP to IAD flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Travel information

Origin airport
Seletar
Destination airport
Washington Dulles Intl.
Distance
9645 mi

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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 . 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 2025. You can also book with separate airlines for your outbound and return journeys, from 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

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*Available to One Key members.