฿19,972 Find Cheap Flights from Bangkok to Washington, D.C. – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bangkok to Washington, D.C. departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bangkok to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bangkok to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest return fare
฿29,401
United Airlines
Tue 22/9Sat 26/9
BKK - DCA • 2 stops
Cheapest one-way flight
฿19,972
Multiple Airlines
Tue 1/9
BKK - BWI • 2 stops
Top airlines
Cheapest • from ฿29,401 (return)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 6% compared to booking last minute.
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Insights
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Insights
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We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Bangkok to Washington, D.C.

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Bangkok to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Bangkok to Washington, D.C.

Tue 22 Sep - Sat 26 Sep
United Airlines Logo
07:00 - 08:55
BKK
-
DCA
36h 55m
2 stops
United Airlines Logo
16:24 - 09:35
DCA
-
BKK
30h 11m
3 stops
฿29,401United Airlines
Thu 24 Sep - Sat 26 Sep
United Airlines Logo
07:00 - 05:17
BKK
-
IAD
33h 17m
2 stops
United Airlines Logo
08:25 - 09:35
IAD
-
BKK
38h 10m
2 stops
฿29,401United Airlines
Tue 22 Sep - Sat 26 Sep
United Airlines Logo
07:00 - 08:55
BKK
-
DCA
36h 55m
2 stops
United Airlines Logo
16:24 - 09:35
DCA
-
BKK
30h 11m
3 stops
฿29,532United Airlines
Thu 24 Sep - Sat 26 Sep
United Airlines Logo
07:00 - 05:17
BKK
-
IAD
33h 17m
2 stops
United Airlines Logo
08:25 - 09:35
IAD
-
BKK
38h 10m
2 stops
฿29,532United Airlines
Sun 20 Sep - Sun 27 Sep
ซาอุเดียแอร์ไลน์ Logo
15:25 - 15:45
BKK
-
IAD
35h 20m
1 stop
ซาอุเดียแอร์ไลน์ Logo
18:50 - 13:45
IAD
-
BKK
31h 55m
1 stop
฿29,696ซาอุเดียแอร์ไลน์
Fri 11 Sep - Sun 13 Sep
เดลต้า Logo
09:50 - 23:24
BKK
-
DCA
24h 34m
2 stops
เดลต้า Logo
10:00 - 01:05
DCA
-
BKK
28h 05m
2 stops
฿36,801เดลต้า
Wed 18 Nov - Wed 9 Dec
Multiple Airlines Logo
20:05 - 18:45
BKK
-
BWI
34h 40m
2 stops
Multiple Airlines Logo
20:35 - 19:55
BWI
-
BKK
35h 20m
2 stops
฿37,292Multiple Airlines
Mon 14 Sep - Tue 10 Nov
Multiple Airlines Logo
16:45 - 06:30
BKK
-
BWI
24h 45m
2 stops
Multiple Airlines Logo
18:12 - 10:45
BWI
-
BKK
28h 33m
2 stops
฿37,718Multiple Airlines
Fri 25 Sep - Tue 10 Nov
STARLUX Airlines Logo
17:50 - 06:30
BKK
-
BWI
47h 40m
2 stops
STARLUX Airlines Logo
18:12 - 12:35
BWI
-
BKK
30h 23m
2 stops
฿39,224STARLUX Airlines
Thu 25 Jun - Mon 13 Jul
เดลต้า Logo
09:50 - 05:49
BKK
-
BWI
30h 59m
2 stops
เดลต้า Logo
05:40 - 21:45
BWI
-
BKK
29h 05m
2 stops
฿42,301เดลต้า
Booking Insights

KAYAK's insights & trends for Bangkok to Washington, D.C. flights

Get data-powered insights and trends into flights from Bangkok to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Bangkok to Washington, D.C.?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Bangkok to Washington, D.C. departing in September.

What is the cheapest month to fly from Bangkok to Washington, D.C.?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Bangkok to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Bangkok to Washington, D.C. is April, where tickets cost ฿15,454 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is ฿36,965 and ฿34,313 respectively.

How far in advance should I book a flight from Bangkok to Washington, D.C.?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Bangkok to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Bangkok to Washington, D.C., you should book around 3 weeks before departure, which saves you about 6% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Cheapest flight฿19,972
Flight from Bangkok to Baltimore

When to book flights from Bangkok to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Bangkok to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Bangkok to Washington, D.C.

  • What is the cheapest flight from Bangkok to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from Bangkok to Washington, D.C. was ฿19,972 for a one-way ticket and ฿29,401 for a return.

  • Which airports will I be using when flying from Bangkok to Washington, D.C.?

    When flying out of Bangkok you will be using one of these airports: Bangkok Suvarnabhumi or Bangkok Don Mueang Intl. You will be landing at Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Bangkok to Washington, D.C.?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Bangkok to Washington, D.C.?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Bangkok and Washington, D.C., with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Bangkok to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Bangkok to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Bangkok to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Bangkok is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Bangkok to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Washington, D.C. with an airline and back to Bangkok with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Bangkok to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Bangkok up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Bangkok to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Bangkok to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Bangkok to Washington, D.C.? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9815 reviews
6.6Food
7.7Boarding
7.1Entertainment
7.3Comfort
8.1Crew
Airline reviews

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

2.0 MediocreLinda, Jun 2026
LIS - IAD
Read more United Airlines reviews

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

Everything you need to know for your flight from Bangkok to Washington, D.C.

Cabin class types available on flights from Bangkok to Washington, D.C.

Cabin classes available on flights from Bangkok to Washington, D.C.. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.