BKK - DCA

$644 Find Cheap Flights from Bangkok to Reagan Washington National Airport - 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 Reagan-National departing on 9/2. 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

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Everything you should know

Cheapest round-trip
$1,025
United Airlines
Mon 9/21Tue 9/22
BKK - DCA • 2 stops
Cheapest one-way
$644
Multiple Airlines
Wed 9/2
BKK - DCA • 2 stops
Top airlines
United Airlines
Cheapest • from $1,025 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Bangkok and Reagan-National. You'll need at least 2 connections.
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Flight Deals

Cheap Flights from Bangkok to Reagan-National (BKK-DCA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bangkok to Reagan-National 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 round-trip flight deals from Bangkok to Reagan-National

Mon, Sep 21 - Tue, Sep 22
United Airlines Logo
7:00 am - 11:50 amBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
39h 50m2 stops Tokyo Narita Houston George Bush Intcntl
United Airlines Logo
3:30 pm - 9:35 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
31h 05m3 stops Chicago O'Hare Intl Los Angeles Hong Kong Intl
$1,025United Airlines
Thu, Sep 10 - Mon, Sep 14
United Airlines Logo
9:35 am - 10:30 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
47h 55m2 stops Tokyo Haneda San Francisco
United Airlines Logo
3:30 pm - 9:35 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
55h 05m3 stops Chicago O'Hare Intl Los Angeles Hong Kong Intl
$1,030United Airlines
Thu, Sep 10 - Mon, Sep 14
United Airlines Logo
9:35 am - 4:43 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
66h 08m2 stops Tokyo Haneda San Francisco
United Airlines Logo
3:30 pm - 4:35 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
26h 05m2 stops Chicago O'Hare Intl Tokyo Haneda
$1,030United Airlines
Tue, Sep 1 - Tue, Sep 8
United Airlines Logo
7:00 am - 11:59 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
27h 59m2 stops Tokyo Narita Houston George Bush Intcntl
United Airlines Logo
5:10 pm - 9:35 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
29h 25m3 stops Chicago O'Hare Intl Los Angeles Hong Kong Intl
$1,031United Airlines
Tue, Sep 1 - Tue, Sep 8
United Airlines Logo
7:00 am - 9:05 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
25h 05m2 stops Tokyo Narita Houston George Bush Intcntl
United Airlines Logo
3:30 pm - 4:35 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
26h 05m2 stops Chicago O'Hare Intl Tokyo Haneda
$1,031United Airlines
Thu, Sep 10 - Mon, Sep 14
United Airlines Logo
7:00 am - 9:05 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
25h 05m2 stops Tokyo Narita Houston George Bush Intcntl
United Airlines Logo
2:00 pm - 4:35 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
27h 35m2 stops Chicago O'Hare Intl Tokyo Haneda
$1,032United Airlines
Tue, Sep 1 - Tue, Sep 15
United Airlines Logo
9:35 am - 10:30 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
47h 55m2 stops Tokyo Haneda San Francisco
United Airlines Logo
1:04 pm - 9:35 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
33h 31m3 stops Chicago O'Hare Intl Los Angeles Hong Kong Intl
$1,036United Airlines
Thu, Nov 5 - Mon, Nov 9
United Airlines Logo
9:10 am - 3:53 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
42h 43m2 stops Tokyo Haneda San Francisco
United Airlines Logo
8:30 am - 11:30 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
39h 00m3 stops Chicago O'Hare Intl Los Angeles Hong Kong Intl
$1,036United Airlines
Mon, Sep 21 - Tue, Sep 22
Air Canada Logo
7:05 am - 10:20 amBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
38h 15m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
4:20 pm - 5:05 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
49h 45m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
$1,071Air Canada
Wed, Nov 25 - Wed, Mar 3
Air Canada Logo
8:25 am - 12:19 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
39h 54m2 stops Vancouver Intl Ottawa
Air Canada Logo
6:59 am - 6:30 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
35h 31m2 stops Toronto Pearson Intl Vancouver Intl
$1,074Air Canada
Booking Insights

KAYAK's insights & trends for Bangkok to Reagan-National flights

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

Which airlines provide the cheapest flights from Bangkok to Reagan Washington National Airport?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Bangkok to Reagan Washington National Airport were found on United Airlines ($1,025) and Air Canada ($1,071).

Find deals

Good to know

Cheapest flight

$644
Flight from Bangkok to Reagan Washington National Airport

When to book flights from Bangkok to Reagan-National

Are your dates flexible? Find out the best times to travel from Bangkok to Reagan-National based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 Bangkok to Reagan Washington National Airport flights

  • What is the cheapest flight from Bangkok Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport?

    In the last 5 days, the lowest price for a flight from Bangkok Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport was $644 for a one-way ticket and $1,025 for a round-trip.

  • Do I need a passport to fly between Bangkok and Reagan Washington National Airport?

    Yes

  • Which aircraft models fly most regularly from Bangkok to Reagan Washington National Airport?

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

  • Which airline alliances offer flights from Bangkok to Reagan Washington National Airport?

    Star Alliance is the only airline alliance operating flights between Bangkok and Reagan Washington National Airport.

  • How does KAYAK find such low prices on flights from Bangkok to Reagan Washington National Airport?

    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 Reagan Washington National Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Bangkok to Reagan Washington National Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reagan Washington National Airport 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 Reagan Washington National Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Reagan Washington National Airport with an airline and back to Bangkok with another airline. Booking your flights between Bangkok and DCA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Bangkok to Reagan Washington National Airport?

    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 Reagan Washington National Airport 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 Reagan-National

 
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 Reagan-National? 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 10086 reviews
7.1Entertainment
7.3Comfort
8.1Crew
7.7Boarding
6.7Food
Airline reviews

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

2.0 MediocreK, Aug 2026
Read more United Airlines reviews

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

Entertainment center did not work and no electric available at seat for 11 hour flight. Didn’t have access to overhead light or call button. Food was tasteless and had a high salt (27 %) of recommended daily salt intake

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

Our flight gor canceled and there was no one to help us but told us to scan the qr code and fill the forms on-line. Very poor service especially we are tourists traveling to Washington DC for the 1st time.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

The flight was canceled. I couldn't get on another flight. Meal voucher wouldn't work. The whole experience was a clusterfuck.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Plane left & arrived early- 5 Crew great. Wi fi - paid for 2, only 1 worked - so so. Waste of $. Coolie was good

The entertainment wasn’t playing in the app or online.

Everything you need to know for your flight from Bangkok to Reagan-National

Information on your arrival and departure airports

Bangkok (BKK)
Reagan-National (DCA)