฿25,410 Cheap Flights from Singapore (SIN) to Washington (IAD)

View ฿25,410 flight on Fri, 5 Jun 2026Opens in a new window

Popular airlines from Changi Airport (SIN) to Washington Dulles International Airport (IAD)

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

Prices were available within the past 7 days and start at ฿25,410 for one-way flights and ฿56,565 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 22 Apr - Thu, 23 Apr
SIN
Singapore
IAD
Washington
฿56,565 Return, found 2 days ago
฿56,565
Return
found 2 days ago
Select United flight, departing Wed, 22 Apr from Singapore to Washington, returning Thu, 23 Apr, priced at ฿56,565 found 2 days ago
Qatar Airways
Wed, 22 Apr - Fri, 24 Apr
SIN
Singapore
IAD
Washington
฿56,920 Return, found 2 days ago
฿56,920
Return
found 2 days ago
Select Qatar Airways flight, departing Wed, 22 Apr from Singapore to Washington, returning Fri, 24 Apr, priced at ฿56,920 found 2 days ago
United
Wed, 22 Apr - Fri, 24 Apr
SIN
Singapore
IAD
Washington
฿57,910 Return, found 2 days ago
฿57,910
Return
found 2 days ago
Select United flight, departing Wed, 22 Apr from Singapore to Washington, returning Fri, 24 Apr, priced at ฿57,910 found 2 days ago
United
Wed, 22 Apr - Fri, 24 Apr
SIN
Singapore
IAD
Washington
฿63,855 Return, found 2 days ago
฿63,855
Return
found 2 days ago
Select United flight, departing Wed, 22 Apr from Singapore to Washington, returning Fri, 24 Apr, priced at ฿63,855 found 2 days ago
Delta
Wed, 22 Apr - Fri, 24 Apr
SIN
Singapore
IAD
Washington
฿64,235 Return, found 2 days ago
฿64,235
Return
found 2 days ago
Select Delta flight, departing Wed, 22 Apr from Singapore to Washington, returning Fri, 24 Apr, priced at ฿64,235 found 2 days ago
Delta
Wed, 22 Apr - Fri, 24 Apr
SIN
Singapore
IAD
Washington
฿64,420 Return, found 2 days ago
฿64,420
Return
found 2 days ago
Select Delta flight, departing Wed, 22 Apr from Singapore to Washington, returning Fri, 24 Apr, priced at ฿64,420 found 2 days ago
Qatar Airways
Wed, 22 Apr - Thu, 23 Apr
SIN
Singapore
IAD
Washington
฿64,580 Return, found 2 days ago
฿64,580
Return
found 2 days ago
Select Qatar Airways flight, departing Wed, 22 Apr from Singapore to Washington, returning Thu, 23 Apr, priced at ฿64,580 found 2 days ago
Delta
Wed, 22 Apr - Fri, 24 Apr
SIN
Singapore
IAD
Washington
฿65,855 Return, found 2 days ago
฿65,855
Return
found 2 days ago
Select Delta flight, departing Wed, 22 Apr from Singapore to Washington, returning Fri, 24 Apr, priced at ฿65,855 found 2 days ago
STARLUX Airlines
Wed, 22 Apr - Fri, 24 Apr
SIN
Singapore
IAD
Washington
฿70,885 Return, found 2 days ago
฿70,885
Return
found 2 days ago
Select STARLUX Airlines flight, departing Wed, 22 Apr from Singapore to Washington, returning Fri, 24 Apr, priced at ฿70,885 found 2 days ago
EVA Airways
Wed, 22 Apr - Fri, 24 Apr
SIN
Singapore
IAD
Washington
฿73,130 Return, found 2 days ago
฿73,130
Return
found 2 days ago
Select EVA Airways flight, departing Wed, 22 Apr from Singapore to Washington, returning Fri, 24 Apr, priced at ฿73,130 found 2 days ago

Frequently asked questions

How much is a flight from Changi Airport (SIN) to Dulles Intl. Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip journey between Changi Airport and Dulles Intl. Airport was ฿56,565. Cheap tickets don't last forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SIN to Washington Dulles Intl. Airport (IAD)?
This varies from airline to airline, as each has its own terms and conditions. Visit the Customer Service Portal, where there are instructions on how to cancel online.
How do I find cheap flights from Singapore Airport to Dulles Intl. 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 Changi Airport (SIN) to IAD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Changi Airport to Washington Dulles Intl. Airport (IAD)?
The distance is around 15,500 kilometres, so fill your carry-on luggage with all you need to make the long journey comfortable. Wondering what to take on board your Singapore to Chantilly flight? A sleep mask, earplugs and a neck pillow are among the essentials.
Which airlines fly direct from SIN to Washington Dulles Intl. Airport (IAD)?
At present, no airlines offer direct flights from SIN to IAD. You'll have to book a flight with one or more stops. To score the best price and connections, lock in your airfare well in advance.
Are Singapore Airport to IAD flight tickets cheaper when they're purchased at the last minute?
Flight prices from Singapore Airport to IAD are available up to a year prior to departure on Expedia. And although you may pick up a great last-minute deal, it's never something you can count on. Also, booking your flights ahead of time means you'll have more options — and you can avoid landing the dreaded middle seat! We're always updating our fares to bring you the best bargains, so keep checking in for all the latest specials.

Travel information

Origin airport
Changi
Destination airport
Washington Dulles Intl.
Return price
฿56,565
Distance
15439 km
*Available to Expedia members.