S$626 Cheap Flights from Washington to Singapore

View S$626 flight on Tue, 22 Sept, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Singapore Changi Airport (SIN)

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Cheap Flights from Washington to Singapore (IAD-SIN)

Prices were available within the past 7 days and start at S$626 for one-way flights and S$1,374 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Mon, 14 Sept - Thu, 15 Oct
IAD
Washington
SIN
Singapore
S$1,374 Return, found 6 days ago
S$1,374
Return
found 6 days ago
Select Etihad Airways flight, departing Mon, 14 Sept from Washington to Singapore, returning Thu, 15 Oct, priced at S$1,374 found 6 days ago
Turkish Airlines
Sat, 5 Sept - Mon, 21 Sept
IAD
Washington
SIN
Singapore
S$1,598 Return, found 5 days ago
S$1,598
Return
found 5 days ago
Select Turkish Airlines flight, departing Sat, 5 Sept from Washington to Singapore, returning Mon, 21 Sept, priced at S$1,598 found 5 days ago
Qatar Airways
Mon, 14 Sept - Thu, 15 Oct
IAD
Washington
SIN
Singapore
S$1,600 Return, found 6 days ago
S$1,600
Return
found 6 days ago
Select Qatar Airways flight, departing Mon, 14 Sept from Washington to Singapore, returning Thu, 15 Oct, priced at S$1,600 found 6 days ago
EVA Airways
Sat, 5 Sept - Mon, 21 Sept
IAD
Washington
SIN
Singapore
S$1,749 Return, found 5 days ago
S$1,749
Return
found 5 days ago
Select EVA Airways flight, departing Sat, 5 Sept from Washington to Singapore, returning Mon, 21 Sept, priced at S$1,749 found 5 days ago
American Airlines
Mon, 19 Oct - Mon, 26 Oct
IAD
Washington
SIN
Singapore
S$1,844 Return, found 1 day ago
S$1,844
Return
found 1 day ago
Select American Airlines flight, departing Mon, 19 Oct from Washington to Singapore, returning Mon, 26 Oct, priced at S$1,844 found 1 day ago
Swiss International Air Lines
Mon, 14 Sept - Thu, 15 Oct
IAD
Washington
SIN
Singapore
S$1,925 Return, found 6 days ago
S$1,925
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Mon, 14 Sept from Washington to Singapore, returning Thu, 15 Oct, priced at S$1,925 found 6 days ago
Lufthansa
Mon, 26 Oct - Mon, 9 Nov
IAD
Washington
SIN
Singapore
S$1,987 Return, found 2 days ago
S$1,987
Return
found 2 days ago
Select Lufthansa flight, departing Mon, 26 Oct from Washington to Singapore, returning Mon, 9 Nov, priced at S$1,987 found 2 days ago
STARLUX Airlines
Sat, 5 Sept - Mon, 21 Sept
IAD
Washington
SIN
Singapore
S$1,990 Return, found 5 days ago
S$1,990
Return
found 5 days ago
Select STARLUX Airlines flight, departing Sat, 5 Sept from Washington to Singapore, returning Mon, 21 Sept, priced at S$1,990 found 5 days ago
Air Canada
Tue, 14 Jul - Tue, 21 Jul
IAD
Washington
SIN
Singapore
S$2,001 Return, found 5 days ago
S$2,001
Return
found 5 days ago
Select Air Canada flight, departing Tue, 14 Jul from Washington to Singapore, returning Tue, 21 Jul, priced at S$2,001 found 5 days ago
British Airways
Sat, 28 Nov - Sun, 20 Dec
IAD
Washington
SIN
Singapore
S$2,074 Return, found 9 hours ago
S$2,074
Return
found 9 hours ago
Select British Airways flight, departing Sat, 28 Nov from Washington to Singapore, returning Sun, 20 Dec, priced at S$2,074 found 9 hours ago

Alternative airports near Singapore

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

Select flight to Changi SIN. Cheapest option available. Average driving time to city centre is 18 minutes. Flights from S$2,271
SIN
Changi
Cheapest
Average driving time to city centre18 min
Flights from S$2,271

Frequently asked questions

How much is a flight from IAD to Singapore Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip flight from IAD to SIN was S$1,374. Fares this cheap don't last forever, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Washington Dulles Intl. Airport (IAD) to SIN?
Most flights can be cancelled online, but every air carrier has its own set of terms and conditions. If you do need to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from Dulles Intl. Airport to Singapore Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Washington Dulles Intl. Airport (IAD) to Changi Airport (SIN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Washington Dulles Intl. Airport (IAD) to Changi Airport (SIN)?
Chantilly to Singapore is around 15,500 kilometres, so be prepared to spend a while in the air. Don't forget to pack all the essentials, from your eye mask to your earphones. Throw in a few snacks to munch on throughout your flight too.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Singapore Airport?
You won't find any airlines flying directly between Dulles Intl. Airport and Changi Airport (SIN), so be prepared to make at least one stop on your journey. A layover can be a welcome way to break up a trip!
Are Dulles Intl. Airport to SIN flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Washington Dulles Intl. Airport (IAD) to Singapore Airport at the last minute could be your ticket to an awesome deal. However, you might miss out on a flight altogether! If you'd rather not take any chances, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to 12 months in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated on Expedia all the time.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Changi
Return price
S$1,374
Distance
15439 km

Book with confidence

Perfect flights from Washington to Singapore

Your Journey from Washington to Singapore

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Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Etihad Airways, Qatar Airways, Turkish Airlines, Air Canada, EVA Airways, American Airlines, STARLUX Airlines, China Airlines, Saudia, Malaysia Airlines, Swiss International Air Lines, Lufthansa, British Airways. Our selection of flights from Washington Dulles Intl. to Changi caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

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Experience the Vibrant Singapore

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*Note: Prices may vary based on availability and are subject to change.
Perfect flights from Washington to Singapore

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