S$516 Cheap Flights from Washington to Bangkok

View S$516 flight on Wed, 28 Jan, 2026Opens 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$516 for one-way flights and S$1,426 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Wed, 18 Feb - Wed, 25 Feb
DCA
Washington
BKK
Bangkok
S$1,426 Return, found 6 days ago
S$1,426
Return
found 6 days ago
Select Cathay Pacific flight, departing Wed, 18 Feb from Washington to Bangkok, returning Wed, 25 Feb, priced at S$1,426 found 6 days ago
Alaska Airlines
Wed, 18 Feb - Wed, 25 Feb
DCA
Washington
BKK
Bangkok
S$1,442 Return, found 6 days ago
S$1,442
Return
found 6 days ago
Select Alaska Airlines flight, departing Wed, 18 Feb from Washington to Bangkok, returning Wed, 25 Feb, priced at S$1,442 found 6 days ago
Alaska Airlines
Wed, 18 Feb - Wed, 25 Feb
DCA
Washington
BKK
Bangkok
S$1,474 Return, found 6 days ago
S$1,474
Return
found 6 days ago
Select Alaska Airlines flight, departing Wed, 18 Feb from Washington to Bangkok, returning Wed, 25 Feb, priced at S$1,474 found 6 days ago
JetBlue Airways
Wed, 18 Feb - Wed, 25 Feb
DCA
Washington
BKK
Bangkok
S$1,555 Return, found 6 days ago
S$1,555
Return
found 6 days ago
Select JetBlue Airways flight, departing Wed, 18 Feb from Washington to Bangkok, returning Wed, 25 Feb, priced at S$1,555 found 6 days ago
JetBlue Airways
Wed, 18 Feb - Wed, 25 Feb
DCA
Washington
BKK
Bangkok
S$1,559 Return, found 6 days ago
S$1,559
Return
found 6 days ago
Select JetBlue Airways flight, departing Wed, 18 Feb from Washington to Bangkok, returning Wed, 25 Feb, priced at S$1,559 found 6 days ago
Alaska Airlines
Wed, 18 Feb - Wed, 25 Feb
DCA
Washington
BKK
Bangkok
S$1,564 Return, found 6 days ago
S$1,564
Return
found 6 days ago
Select Alaska Airlines flight, departing Wed, 18 Feb from Washington to Bangkok, returning Wed, 25 Feb, priced at S$1,564 found 6 days ago
United
Wed, 18 Feb - Wed, 25 Feb
DCA
Washington
BKK
Bangkok
S$1,577 Return, found 6 days ago
S$1,577
Return
found 6 days ago
Select United flight, departing Wed, 18 Feb from Washington to Bangkok, returning Wed, 25 Feb, priced at S$1,577 found 6 days ago
Japan Airlines
Wed, 18 Feb - Wed, 25 Feb
DCA
Washington
BKK
Bangkok
S$1,585 Return, found 6 days ago
S$1,585
Return
found 6 days ago
Select Japan Airlines flight, departing Wed, 18 Feb from Washington to Bangkok, returning Wed, 25 Feb, priced at S$1,585 found 6 days ago
Alaska Airlines
Wed, 18 Feb - Wed, 25 Feb
DCA
Washington
BKK
Bangkok
S$1,590 Return, found 6 days ago
S$1,590
Return
found 6 days ago
Select Alaska Airlines flight, departing Wed, 18 Feb from Washington to Bangkok, returning Wed, 25 Feb, priced at S$1,590 found 6 days ago
All Nippon Airways
Wed, 18 Feb - Wed, 25 Feb
DCA
Washington
BKK
Bangkok
S$1,601 Return, found 6 days ago
S$1,601
Return
found 6 days ago
Select All Nippon Airways flight, departing Wed, 18 Feb from Washington to Bangkok, returning Wed, 25 Feb, priced at S$1,601 found 6 days ago

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

September is typically the cheapest month to fly

From S$1,054 - S$1,718 per traveller.
Washington to Bangkok route information
Origin airport
Ronald Reagan Washington National
Destination airport
Suvarnabhumi Intl.
Return price
S$1,425
Distance
14085 km

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!

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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!

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$1,426. 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.

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