$630 Find Cheap Flights from Thailand 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 to Reagan-National departing on 9/5. 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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Cheap Flights from Thailand to Reagan-National

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

Mon, Feb 1 - Sun, Feb 14
United Airlines Logo
9:10 am - 9:53 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
24h 43m2 stops Tokyo Haneda San Francisco
United Airlines Logo
7:00 am - 5:10 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
34h 10m2 stops Chicago O'Hare Intl Tokyo Haneda
$1,032United Airlines
Mon, Feb 1 - Sun, Feb 14
United Airlines Logo
9:10 am - 9:53 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
24h 43m2 stops Tokyo Haneda San Francisco
United Airlines Logo
1:00 pm - 11:30 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
34h 30m3 stops Chicago O'Hare Intl Los Angeles Hong Kong Intl
$1,032United Airlines
Fri, Feb 5 - Sun, Feb 7
United Airlines Logo
7:10 am - 4:56 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
45h 46m2 stops Tokyo Narita 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
$1,033United Airlines
Wed, Aug 26 - Sat, Aug 29
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
10:30 am - 9:35 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
36h 05m3 stops Chicago O'Hare Intl Los Angeles Hong Kong Intl
$1,033United Airlines
Fri, Feb 5 - Sun, Feb 7
United Airlines Logo
7:10 am - 9:53 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
26h 43m2 stops Tokyo Narita San Francisco
United Airlines Logo
11:30 am - 5:10 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
29h 40m2 stops Chicago O'Hare Intl Tokyo Haneda
$1,034United Airlines
Fri, Feb 5 - Sun, Feb 7
United Airlines Logo
7:10 am - 4:56 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
45h 46m2 stops Tokyo Narita San Francisco
United Airlines Logo
2:00 pm - 11:30 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
33h 30m3 stops Chicago O'Hare Intl Los Angeles Hong Kong Intl
$1,034United Airlines
Fri, Feb 5 - Sun, Feb 7
United Airlines Logo
7:10 am - 9:53 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
26h 43m2 stops Tokyo Narita San Francisco
United Airlines Logo
11:30 am - 5:10 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
29h 40m2 stops Chicago O'Hare Intl Tokyo Haneda
$1,035United Airlines
Fri, Feb 5 - Sun, Feb 7
United Airlines Logo
7:10 am - 9:53 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
26h 43m2 stops Tokyo Narita San Francisco
United Airlines Logo
1:00 pm - 5:10 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
28h 10m2 stops Chicago O'Hare Intl Tokyo Haneda
$1,035United Airlines
Thu, Dec 3 - Sat, Jan 30
Gulf Air Logo
7:15 pm - 6:57 pmBKK  Bangkok Suvarnabhumi-DCA Washington, D.C. Reagan-National
35h 42m2 stops Manama Bahrain Intl New York John F Kennedy Intl
Gulf Air Logo
1:30 pm - 9:20 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
55h 50m2 stops New York John F Kennedy Intl Manama Bahrain Intl
$1,043Gulf Air
Thu, Dec 3 - Mon, Jan 25
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
11:05 am - 6:30 amDCA  Washington, D.C. Reagan-National-BKK Bangkok Suvarnabhumi
55h 25m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
$1,076Air Canada
Booking Insights

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

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

How long is the flight to Washington, D.C. Reagan-National Airport?

The duration of your flight to Washington, D.C. depends on your departure and arrival airports. Obviously, any flights that include a layover will also be longer. The most popular routes to Washington, D.C. on KAYAK are from Bangkok, which takes 27h 04m, and Chiang Mai, which takes 35h 55m.

How many direct flights to Washington, D.C. Reagan-National Airport are there each day?

There are around 719 direct flights from within Thailand to Washington, D.C. Reagan-National Airport every day. Most flights depart in the morning, with 47% of flights departing in the morning.

Good to know

Cheapest flight

$630
Flight from Bangkok to Reagan Washington National Airport

FAQs - booking Reagan Washington National Airport flights

  • How far is Washington, D.C. Reagan-National Airport from central Washington, D.C.?

    Central Washington, D.C. is 4 miles away from Washington, D.C. Reagan-National Airport.

  • How does KAYAK find such low prices on flights 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 to Reagan Washington National Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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 is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Washington, D.C. Reagan-National Airport are there each week?

    Each week there are around 5,030 direct flights from within Thailand to Washington, D.C. Reagan-National Airport. The most common day for departures is Sunday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to Reagan Washington National Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Reagan Washington National Airport flight deals.

Reviews of the top airline flying from Thailand to Reagan-National

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Thailand to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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 10111 reviews
7.7Boarding
7.3Comfort
7.1Entertainment
6.7Food
8.1Crew
Airline reviews

Very kind Lufthansa agent somehow gave us all no charge extra business class seats and helped us get home rested and happy.

10.0 ExcellentAnonymous, Aug 2026
Read more United Airlines reviews

Very kind Lufthansa agent somehow gave us all no charge extra business class seats and helped us get home rested and happy.

The lounge was not accessible because it was located before the passport control, and backtracking was impossible.

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.

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.

Traveling to a place near Reagan-National?

Book flights to Reagan-National if you plan to visit one of these locations
Linthicum Heights
Hanover
Springfield
Gaithersburg
Towson
Oxon Hill
Owings Mills
Greenbelt
Glen Burnie
Edgewood
Chesapeake Beach
Ellicott City
Camp Springs
Pikesville
Colonial Beach
Hunt Valley
Lutherville Timonium
Capitol Heights
Westminster
Stevensville

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

Information on the airport you'll fly into in Washington, D.C.