S$802 Cheap Flights from Washington to Bangkok

View S$802 flight on Sun, 23 Nov, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Suvarnabhumi Intl. Airport (BKK)

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Cheap Flights from Washington to Bangkok (DCA-BKK)

Prices were available within the past 7 days and start at S$802 for one-way flights and S$1,763 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Sun, 23 Nov - Sun, 30 Nov
DCA
Washington
BKK
Bangkok
S$1,763 Return, found 2 days ago
S$1,763
Return
found 2 days ago
Select JetBlue Airways flight, departing Sun, 23 Nov from Washington to Bangkok, returning Sun, 30 Nov, priced at S$1,763 found 2 days ago
JetBlue Airways
Tue, 26 May - Fri, 5 Jun
DCA
Washington
BKK
Bangkok
S$1,851 Return, found 5 days ago
S$1,851
Return
found 5 days ago
Select JetBlue Airways flight, departing Tue, 26 May from Washington to Bangkok, returning Fri, 5 Jun, priced at S$1,851 found 5 days ago
United
Tue, 26 May - Fri, 5 Jun
DCA
Washington
BKK
Bangkok
S$1,865 Return, found 5 days ago
S$1,865
Return
found 5 days ago
Select United flight, departing Tue, 26 May from Washington to Bangkok, returning Fri, 5 Jun, priced at S$1,865 found 5 days ago
Delta
Sun, 23 Nov - Sun, 30 Nov
DCA
Washington
BKK
Bangkok
S$2,016 Return, found 2 days ago
S$2,016
Return
found 2 days ago
Select Delta flight, departing Sun, 23 Nov from Washington to Bangkok, returning Sun, 30 Nov, priced at S$2,016 found 2 days ago
Korean Air
Sun, 23 Nov - Sun, 30 Nov
DCA
Washington
BKK
Bangkok
S$2,019 Return, found 2 days ago
S$2,019
Return
found 2 days ago
Select Korean Air flight, departing Sun, 23 Nov from Washington to Bangkok, returning Sun, 30 Nov, priced at S$2,019 found 2 days ago
Cathay Pacific
Tue, 26 May - Fri, 5 Jun
DCA
Washington
BKK
Bangkok
S$2,059 Return, found 5 days ago
S$2,059
Return
found 5 days ago
Select Cathay Pacific flight, departing Tue, 26 May from Washington to Bangkok, returning Fri, 5 Jun, priced at S$2,059 found 5 days ago
United
Sun, 23 Nov - Sun, 30 Nov
DCA
Washington
BKK
Bangkok
S$2,073 Return, found 2 days ago
S$2,073
Return
found 2 days ago
Select United flight, departing Sun, 23 Nov from Washington to Bangkok, returning Sun, 30 Nov, priced at S$2,073 found 2 days ago
United
Tue, 26 May - Fri, 5 Jun
DCA
Washington
BKK
Bangkok
S$2,110 Return, found 5 days ago
S$2,110
Return
found 5 days ago
Select United flight, departing Tue, 26 May from Washington to Bangkok, returning Fri, 5 Jun, priced at S$2,110 found 5 days ago
Cathay Pacific
Tue, 26 May - Fri, 5 Jun
DCA
Washington
BKK
Bangkok
S$2,144 Return, found 5 days ago
S$2,144
Return
found 5 days ago
Select Cathay Pacific flight, departing Tue, 26 May from Washington to Bangkok, returning Fri, 5 Jun, priced at S$2,144 found 5 days ago
Delta
Sun, 23 Nov - Sun, 30 Nov
DCA
Washington
BKK
Bangkok
S$2,151 Return, found 2 days ago
S$2,151
Return
found 2 days ago
Select Delta flight, departing Sun, 23 Nov from Washington to Bangkok, returning Sun, 30 Nov, priced at S$2,151 found 2 days ago

Find the cheapest month to fly from Washington (DCA) to Bangkok (BKK)

September is typically the cheapest month to fly

From S$1,018 - S$1,710 per traveller.

Frequently asked questions

How much is a flight from DCA to BKK?
If you're travelling from DCA to Suvarnabhumi Airport, round-trip journeys start from S$1,763. This price is based on fares quoted within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal pass you by. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Ronald Reagan Washington National Airport (DCA) to BKK?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from DCA to BKK 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 DCA to BKK flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Ronald Reagan Washington National Airport (DCA) to BKK?
With a flight distance of 14,200 kilometres between Ronald Reagan Washington National Airport (DCA) and Bangkok Airport, this is a long journey. Remember to drink lots of water and move your legs every now and then.
Which airlines fly direct from National Airport to Suvarnabhumi Intl. Airport (BKK)?
There are no direct flights, so you'll need to make at least one stop between DCA and BKK. Make the most of the layover time to stretch your legs and grab a bite to eat.
Are DCA to Bangkok Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to get great last-minute deals from Ronald Reagan Washington National Airport (DCA) to BKK, but it can also be hit-or-miss. As many airlines advertise prices up to 12 months in advance, it's worth keeping an eye on fares early and being ready to pounce when you spot a good bargain. Expedia compares carrier prices and updates flight deals often, so you can be sure you're always getting the latest offers.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Suvarnabhumi Intl.
Return price
S$1,762
Distance
14085 km

Book with confidence

Flights from Washington to Bangkok

There are several airlines that operate frequent flights from Washington D.C. (DCA) to Bangkok (BKK) including

The earliest flight leaves Ronald Reagan Washington National Airport at 09:35 and arrives at Suvarnabhumi Intl. Airport at 05:45. The last flight of the day departs Washington D.C. at 17:45 and arrives at Bangkok at 23:35.

The flight distance from Washington D.C. to Bangkok is about 15573 km, the shortest flight is 00 hours with American Airlines."

Expedia lets you search across the largest number of airlines and Bangkok flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Washington Bangkok flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Washington to Bangkok trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Bangkok flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Washington to Bangkok with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Flights from Washington to Bangkok

Explore a world of travel with Expedia

Washington Airports

Washington

Washington Dulles Intl. to Bangkok
S$1,335.30

Baltimore

*Available to Expedia members.