S$557 Cheap Flights from Washington to Singapore

View S$557 flight on Sun, 6 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$557 for one-way flights and S$1,107 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Sun, 5 Apr - Mon, 20 Apr
IAD
Washington
SIN
Singapore
S$1,107 Return, found 1 day ago
S$1,107
Return
found 1 day ago
Select Etihad Airways flight, departing Sun, 5 Apr from Washington to Singapore, returning Mon, 20 Apr, priced at S$1,107 found 1 day ago
Turkish Airlines
Tue, 3 Mar - Tue, 10 Mar
IAD
Washington
SIN
Singapore
S$1,263 Return, just found
S$1,263
Return
just found
Select Turkish Airlines flight, departing Tue, 3 Mar from Washington to Singapore, returning Tue, 10 Mar, priced at S$1,263 just found
EVA Airways
Tue, 1 Sept - Sun, 13 Sept
IAD
Washington
SIN
Singapore
S$1,329 Return, found 1 day ago
S$1,329
Return
found 1 day ago
Select EVA Airways flight, departing Tue, 1 Sept from Washington to Singapore, returning Sun, 13 Sept, priced at S$1,329 found 1 day ago
STARLUX Airlines
Tue, 1 Sept - Tue, 8 Sept
IAD
Washington
SIN
Singapore
S$1,382 Return, found 6 days ago
S$1,382
Return
found 6 days ago
Select STARLUX Airlines flight, departing Tue, 1 Sept from Washington to Singapore, returning Tue, 8 Sept, priced at S$1,382 found 6 days ago
Air Canada
Fri, 17 Apr - Sat, 25 Apr
IAD
Washington
SIN
Singapore
S$1,446 Return, found 4 days ago
S$1,446
Return
found 4 days ago
Select Air Canada flight, departing Fri, 17 Apr from Washington to Singapore, returning Sat, 25 Apr, priced at S$1,446 found 4 days ago
United
Sun, 1 Mar - Mon, 9 Mar
IAD
Washington
SIN
Singapore
S$1,476 Return, just found
S$1,476
Return
just found
Select United flight, departing Sun, 1 Mar from Washington to Singapore, returning Mon, 9 Mar, priced at S$1,476 just found
Qatar Airways
Wed, 4 Mar - Fri, 13 Mar
IAD
Washington
SIN
Singapore
S$1,495 Return, just found
S$1,495
Return
just found
Select Qatar Airways flight, departing Wed, 4 Mar from Washington to Singapore, returning Fri, 13 Mar, priced at S$1,495 just found
Korean Air
Tue, 1 Sept - Tue, 8 Sept
IAD
Washington
SIN
Singapore
S$1,496 Return, found 6 days ago
S$1,496
Return
found 6 days ago
Select Korean Air flight, departing Tue, 1 Sept from Washington to Singapore, returning Tue, 8 Sept, priced at S$1,496 found 6 days ago
All Nippon Airways
Tue, 1 Sept - Sun, 13 Sept
IAD
Washington
SIN
Singapore
S$1,539 Return, found 1 day ago
S$1,539
Return
found 1 day ago
Select All Nippon Airways flight, departing Tue, 1 Sept from Washington to Singapore, returning Sun, 13 Sept, priced at S$1,539 found 1 day ago
American Airlines
Sun, 5 Apr - Mon, 20 Apr
IAD
Washington
SIN
Singapore
S$1,620 Return, found 1 day ago
S$1,620
Return
found 1 day ago
Select American Airlines flight, departing Sun, 5 Apr from Washington to Singapore, returning Mon, 20 Apr, priced at S$1,620 found 1 day ago

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Find the cheapest month to fly from Washington (IAD) to Singapore (SIN)

September is typically the cheapest month to fly

From S$1,060 - S$1,509 per traveller.

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$1,107. 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
Airlines serving
Air Canada, Air France, All Nippon Airways, American Airlines, British Airways, Delta, EVA Airways, Emirates, Ethiopian Airlines, Etihad Airways, KLM, Korean Air, Lufthansa, Malaysia Airlines, Qatar Airways, SriLankan Airlines, Swiss International Air Lines, Turkish Airlines, United
Return price
S$1,107
Distance
15439 km

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Perfect flights from Washington to Singapore

Your Journey from Washington to Singapore

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Experience the Vibrant Singapore

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Book Your Flight from Washington to Singapore with Confidence

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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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