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Find cheap flights from Thailand to Reagan Washington National Airport from $502

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 5/14. 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
0 bags
Sun 5/26
Sun 6/2

Search hundreds of travel sites at once for deals on flights to Reagan Washington National Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights 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 for flights to Washington, D.C., as well as popular online travel agencies
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Flights to Reagan-National - Travel Insights & Trends

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.

What is the cheapest day to fly to Washington, D.C.?

The average price of all flights to Washington, D.C. Reagan-National Airport clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Wednesday where tickets can be as cheap as $1,095. On the other hand, the most expensive day to fly is Thursday, where prices are $1,386 on average.

What is the cheapest time of day to fly to Washington, D.C. Reagan-National Airport?

The average price for all flights to Washington, D.C. Reagan-National Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Washington, D.C. Reagan-National Airport is generally in the morning, when flights cost $1,095 on average. The most expensive time of day to fly to Washington, D.C. Reagan-National Airport is generally at night, which is peak travel time and where the average cost of a ticket is $1,350.

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 26h 30m, and Chiang Mai, which takes 31h 35m.

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

There are around 521 direct flights from within Thailand to Washington, D.C. Reagan-National Airport every day. Most flights depart in the morning, with 6:00 am the most common departure time and 51% of flights departing in the morning.

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

Each week there are around 3,643 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.

Good to know

Low season

February

High season

August

Cheapest flight

$502
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Bangkok to Reagan Washington National Airport

FAQs - booking Reagan Washington National Airport flights

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

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

  • Which airline offers the most flights to Washington, D.C. Reagan-National Airport?

    Of the 7 airlines that fly to Washington, D.C. Reagan-National Airport, American Airlines offers the most flights, with around 2,364 per week, followed by Delta with 613 flights per week.

See more FAQs

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.

Prefer to fly non-stop to Washington, D.C. Reagan-National?

Find which airlines fly direct to Reagan-National, which days they fly and book direct flights.

Nonstop departures

Thailand to Washington, D.C. Reagan-National

Monday

ANA, Aerolineas Argentinas, Aeromexico, +41 more

ANA, Aerolineas Argentinas, +42 more

Tuesday

ANA, Aerolineas Argentinas, Aeromexico, +41 more

ANA, Aerolineas Argentinas, +42 more

Wednesday

ANA, Aerolineas Argentinas, Aeromexico, +41 more

ANA, Aerolineas Argentinas, +42 more

Thursday

ANA, Aerolineas Argentinas, Aeromexico, +40 more

ANA, Aerolineas Argentinas, +41 more

Friday

ANA, Aerolineas Argentinas, Aeromexico, +41 more

ANA, Aerolineas Argentinas, +42 more

Saturday

ANA, Aerolineas Argentinas, Aeromexico, +40 more

ANA, Aerolineas Argentinas, +41 more

Sunday

ANA, Aerolineas Argentinas, Aeromexico, +42 more

ANA, Aerolineas Argentinas, +43 more

See more direct flights

Nonstop returns

Washington, D.C. Reagan-National to Thailand

Monday

ANA, Aerolineas Argentinas, Aeromexico, +41 more

ANA, Aerolineas Argentinas, +42 more

Tuesday

ANA, Aerolineas Argentinas, Aeromexico, +41 more

ANA, Aerolineas Argentinas, +42 more

Wednesday

ANA, Aerolineas Argentinas, Aeromexico, +41 more

ANA, Aerolineas Argentinas, +42 more

Thursday

ANA, Aerolineas Argentinas, Aeromexico, +40 more

ANA, Aerolineas Argentinas, +41 more

Friday

ANA, Aerolineas Argentinas, Aeromexico, +41 more

ANA, Aerolineas Argentinas, +42 more

Saturday

ANA, Aerolineas Argentinas, Aeromexico, +40 more

ANA, Aerolineas Argentinas, +41 more

Sunday

ANA, Aerolineas Argentinas, Aeromexico, +42 more

ANA, Aerolineas Argentinas, +43 more

See more direct flights
See more direct flights

Top airlines 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 11234 reviews
8.1crew
7.1entertainment
6.7food
7.2comfort
7.7boarding
Airline reviews

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

8.0 ExcellentAlex, Apr 2024PHX - IAD
Read more about United Airlines reviews

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

One of the best flying experiences I’ve ever had.

The flight cancellation and process for getting a new flight was not that clear. United also had some delays that were unexpected. I am the most disappointed by the fact that I originally bought a Lufthansa ticket, only to be flown by United.

Need to have more snacks for the duration and coffee.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

On time - really well operated flight. Friendly staff. Super impressed with United on this round trip.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

The flight was great until towards the end when the flight attendant read an excessively long commercial for purchasing an american airlines credit card. The worst part is that we are doing a lot of traveling this year so i was actually interested in getting the credit card, but I was so annoyed with the long commercial that I completely dismissed the flight attendant bringing around the information. Next time, keep the sales pitch to 10 seconds and then pass around the brochures!!

Nice aircraft. Plane was PACKED full and distance between seats was tight. Had it been more than a two hour flight it would not have been tolerable. I had much more knee space on the JetBlue flight I went out on.

New ridiculous policy by american destroyed my allegiance to american. As a million miler with american, I expected it would be easy to get on an earlier flight when I got to airport earlier than expected, and save a five hour layover. WRONG. The online app would not let me switch flights, So I called, and was promised a call back in 90 minutes. HAH! The customer service desk at DCA said “we no longer have access to changing a flight on our screens. If the app couldn’t do it, I should send a letter to American, but there’s nothing else possible!”

I am tired of being nickel and dimed for seat location, checked luggage and carry on bags. That is why i rarely fly anymore.

It was right on time and crew were very courteous

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Literally the worst experience ever and I had my service dog with me. Flight was supposed to leave at 1:51 PM but the plane arrived late. They boarded us around 3 PM and kept us on the plane for an hour saying that due to weather conditions in Miami, we could not takeoff yet. After waiting for an hour, they deplaned. And then they will not give us our bags back that we could just leave and schedule for another flight. Every hour they kept updating saying we have to wait another hour without any explanation as to what was going on. Eventually, I went to customer service to change my ticket, but by the time I made it to the front of the line, they started boarding my flight again. And then when we got onto the flight, they said there were two flight attendants That were past their shift. They kept us on the plane for about another 40 minutes until they told us they had no other flight attendance and had to deplane again. Then I gave us hotel vouchers and told us we would be on a flight at 6 AM the next day. At this point it is about 9 PM. I get to the hotel with my dog, who hasn’t been able to go potty for about eight hours. When I arrived at the hotel, I got a text alert saying my flight has been canceled at 6 AM and they moved past to 5 AM, however the hotel shuttle doesn’t leave early enough to make it to the airport for 5 AM flight. So me and some other passengers got a cab after about three hours of sleep to get back to the airport. This was the worst experience ever.

Their computers were down upon arrival to the airport. They were unable to figure out how to board us. We were delayed over an hour and a half.

Delay. Flight was delayed in Washington.knew that connection was impossible as not enough time to switch terminals. The steward would not let me stay the night. So forced to Dallas.late night, after 10pm.hotel checkin was one hour. Passengers lined up only one girl to checkin at comfort inn. No food availability at that time. Had to leave early at 6:30 am to catch a flight at 8:45. Stressfull.

Book cheap flights from Thailand to Washington, D.C.

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Washington, D.C. found on KAYAK in the last 72 hours.
9/25Wed
2 stopsUnited Airlines
66h 21mBKK-DCA
9/29Sun
2 stopsUnited Airlines
45h 35mDCA-BKK
$943
9/25Wed
2 stopsUnited Airlines
40h 26mBKK-DCA
9/29Sun
2 stopsUnited Airlines
47h 35mDCA-BKK
$945
5/28Tue
2 stopsJapan Airlines
36h 19mBKK-DCA
11/11Mon
2 stopsJapan Airlines
34h 56mDCA-BKK
$1,052
6/18Tue
2 stopsJapan Airlines
29h 19mBKK-DCA
7/17Wed
2 stopsJapan Airlines
29h 01mDCA-BKK
$1,078
10/15Tue
2 stopsDelta
26h 58mBKK-DCA
11/5Tue
2 stopsDelta
27h 25mDCA-BKK
$1,096
6/23Sun
2 stopsAmerican Airlines
28h 28mBKK-DCA
6/29Sat
2 stopsAmerican Airlines
29h 00mDCA-BKK
$1,148
10/16Wed
2 stops
27h 19mBKK-DCA
11/3Sun
2 stops
26h 35mDCA-BKK
$1,152
10/17Thu
2 stops
24h 51mBKK-DCA
11/3Sun
2 stops
26h 35mDCA-BKK
$1,154
6/14Fri
2 stopsDelta
28h 50mBKK-DCA
7/11Thu
2 stopsDelta
28h 35mDCA-BKK
$1,164
6/11Tue
2 stopsAmerican Airlines
28h 27mBKK-DCA
7/10Wed
2 stopsAmerican Airlines
34h 16mDCA-BKK
$1,229

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Washington, D.C. found on KAYAK in the last 72 hours.
5/14Tue
3 stops
33h 30mBKK-DCA
$502
5/15Wed
3 stops
33h 33mBKK-DCA
$596
6/2Sun
2 stopsJapan Airlines
36h 19mBKK-DCA
$713
9/5Thu
2 stopsJapan Airlines
27h 19mBKK-DCA
$714
5/19Sun
2 stopsAmerican Airlines
29h 18mBKK-DCA
$717
5/1Wed
2 stopsAmerican Airlines
28h 50mBKK-DCA
$718
5/15Wed
2 stopsDelta
32h 50mBKK-DCA
$853
5/9Thu
2 stopsDelta
31h 15mCNX-DCA
$853
10/21Mon
3 stopsUnited Airlines
46h 30mBKK-DCA
$907
7/11Thu
3 stopsUnited Airlines
44h 25mBKK-DCA
$1,035

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Last minute flights to Reagan-National

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Washington, D.C. that are departing in the next 10 days.
4/30Tue
multi-stopAmerican Airlines
30h 51mBKK-DCA
5/12Sun
multi-stopAmerican Airlines
32h 40mDCA-BKK
$1,592
4/30Tue
multi-stopCathay Pacific
36h 14mBKK-DCA
5/18Sat
multi-stopCathay Pacific
35h 15mDCA-BKK
$2,507

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Flights to Reagan Washington National Airport

Destination:

Reagan Washington National Airport (DCA)United States

Return flight deals:

Reagan Washington National Airport - Thailand

Cabin classes: