Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from Reagan Washington National Airport to Thailand from $560

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Thailand departing on 9/10. 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
Sat 6/29
Sat 7/6

Search hundreds of travel sites at once for deals on flights to Thailand

In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Best Thailand Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Phuket City
Phuket City2 stops$1,032
Chiang Mai
Chiang Mai2 stops$1,209
Koh Samui
Koh Samui3 stops$1,634
Krabi
Krabi2 stops$4,003

Good to know

Low season

May

High season

December

Cheapest flight

$560
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 72% increase in price.
Flight from Reagan Washington National Airport to Bangkok

FAQs - booking Thailand flights

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

    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 Reagan Washington National Airport to Thailand.

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

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

    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 Thailand with an airline and back to Reagan Washington National Airport with another airline.

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

    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 Thailand from Reagan Washington National Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Thailand

  • Morning departure is around 23% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Reagan-National to Thailand

 
Need help choosing which airline to fly with from Reagan-National to Thailand? 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.
8.5
Korean AirOverall score based on 1150 reviews
8.1Food
8.3Comfort
8.8Crew
8.6Boarding
8.2Entertainment
Airline reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

10.0 ExcellentAnonymous, Apr 2024IAD - ICN
Read more about Korean Air reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

Great crew, decent food Charging plugs were broken on both seats next to me. Only the USB port was available, and that charges, very, very slowly. Seat was also broken, it would not lock into position when reclining.

Korean Air had great service and the Bibimbap dish was the best airplane food I’ve ever had. It was a long flight so in between the two meals they served customers could get Shin ramen. The flight attendants let my children use a pair of nice headphones for the flight and had earbuds and slippers for all the adults. The flight was long but the time passed by relatively quickly because they have many great shows in their entertainment TV. I watched the BTS Love Yourself and Speak Yourself concerts 💜

New plane. Perfect gluten free meal Very flawless procedures from check-in to the landing. Taking off on time and landing even earlier and the luggages are already there after shortest arrival report.

not too bad but not too great either. Service on all airlines declined ever since covid. Your Delta Stewardess are not that friendly at all. :-(

I like your stewardess, they are nice. However, your food could have been better and wheres your dessert? You do not offer beer or scotch. I do not drink alcohol biut my husband can have one or two, he has to ask if he can have one. during dinner or lunch, it should be offerred. Also, you do not have the most famous drinks ginger ale

You did not put me on a Korean Air flight! so I do not have nothing to say

My flight was diverted to Atlanta and I was not given enough time. I paid my travel on April 23, 2023. It was originally Delta from Norfolk to NY, then Korean Air from NY all the way Philippines which is my final stop. Instead from Atlanta to Korea I flew Delta which is okay. Then Korea to Philippines, I flew Asiana Airlines. What I did not like, Ieagle did not sent me an email that my flight was change and so when I went to check in Wednesday the 10th, at 4:30 a.m they told me my flight was delayed at 6;00 p.m and diverted in Atlanta and I am flying Asiana from Korea to Philippines. I do not appreciate that Kayak or Ieagle chenge our flights 5 times and then last minute change again during my day of flight. I hope that you will not make any changes of my flight o Feb 15th because it has to be the same flight with my husband. That is the reason why we made the arrangements early on.

Wonderful cabin crew!!!!! Food was poor, in flight entertainment was just ok. They need to serve more water on a 15 hour flight--we were dehydrated and kept asking for water.

Going through security a third time to get on the next flight was again utterly ridiculous and unnecessary. We were in a International secure area once again and as far as I'm concerned should not have been put through the gears for absolutely no reason. The United States can get all the information they need from the travel itinerary, there was no need to be forced out of a secure area to personally interview everyone on a connecting flight to find out their US immigration status.

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Half the bathrooms assigned to economy were out of action

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Besides the flight cancellation, everything else was prefect. Kudos to Malaysian Airlines.

Operated by American Airlines. Very chaotic and the crew was bit rough responding any enquiries. Restricted leg space.. Qatar would have been better

Qatar airways from Doha to guangzhau was excellent big bird Boeing 777 more room and smoothly flight, I Love it

It was good no problems made it on time for the next flight overseas!

The made us waiting and held our passports and boarding pass making us miss our flights

Not impressed. Only allowed one carry on on such a long flight.

The flight was good but my neighbor had the vent open full power for the whole flight and because the air was blowing from the side instead of from the top and I got very cold and ended up with a sore throat.

Bad experience with the delay n long wait time for connecting flight after missing the connection flight from Doha.

Wore experience due to delay and took me 3 days to reach my destination.

All over with Qatar airlines my experience was really bad due to delays and then putting me on different airlines and after 8 hours of wait I had to listen to their is no plane to fly for another 24 hours. Wore experience ever.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Food was terrible Not many options Stewards dont care Delay

The ride was good but no food ot entertainment hence, it was just over an hour flight.

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Every experience was good except for the lack of comfort in those economy seats. I never had knee pain until that flight. Those seats are uncomfortable.

I bought internet for the flight. Don’t waste your money. I wasn’t able to download a 1 Mb file from Google Docs during a 3-4 hr period. You can only use WhatsApp and email if you are willing to wait.

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

AA1537 the AC was not working properly. It was very hot and uncomfortable.

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

Delayed abs delayed Gate crew giving poor info - we are definitely leaving at —- Ultimately to cancel flight after 4+ hours of delays Just cancel it earlier

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Everything was on time; the flight attendants and the gate personnel were very pleasant and helpful.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Perfect flight. On time departure and early arrival. Smooth flight.

Awful! The flight was delayed and we sat on the plane in DCA for an hour because fuel was out in the wrong part of the plane and would not be accessible during flight. So the plane had to be refueled in correct tank. They also allowed someone to get off of the plane. This delayed my six hour flight by an hour and made me miss my connecting flight. I ran to new gate and American Airlines agents new about the delay and even knew that I was trying to make the connection. They knew thru communication with my friend while in flight that I was in the airport and running to the new gate and they still closed the gate and refused to let me on the new flight despite plane still being at the gate. It was horrible and I had to be rebooked on a flight for 24 hours later. This has been a nightmare and if American Airlines can cause customers to be delayed and then have zero empathy as having an on time flight was more important to them than helping a customer who was delayed by no fault of her own, then it's seems that it's not a company that I want to continue to give my loyalty to. I'm so disgusted.

Help was available but timing was bad in my case

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

Recent round-trip flight deals

10/1Tue
2 stopsCathay Pacific
24h 21mDCA-BKK
10/22Tue
2 stopsCathay Pacific
25h 44mBKK-DCA
$1,020
10/28Mon
2 stops
37h 30mDCA-HKT
11/27Wed
2 stops
33h 27mHKT-DCA
$1,032
9/7Sat
2 stopsAmerican Airlines
30h 00mDCA-BKK
9/22Sun
2 stopsAmerican Airlines
31h 14mBKK-DCA
$1,065
10/23Wed
2 stopsAmerican Airlines
33h 12mDCA-BKK
2/18Tue
2 stopsAmerican Airlines
31h 50mBKK-DCA
$1,066
9/24Tue
2 stopsQatar Airways
24h 46mDCA-BKK
9/30Mon
2 stopsQatar Airways
27h 45mBKK-DCA
$1,269
9/23Mon
2 stopsQatar Airways
25h 40mDCA-BKK
2/3Mon
2 stopsQatar Airways
28h 49mBKK-DCA
$1,270
8/15Thu
2 stopsKorean Air
26h 15mDCA-BKK
11/16Sat
2 stopsKorean Air
28h 32mBKK-DCA
$1,581
11/2Sat
2 stopsKorean Air
33h 15mDCA-BKK
11/29Fri
2 stopsKorean Air
28h 32mBKK-DCA
$1,585
7/3Wed
2 stopsDelta
25h 55mDCA-CNX
7/15Mon
2 stopsDelta
26h 35mCNX-DCA
$1,692
11/6Wed
2 stopsDelta
37h 10mDCA-HKT
11/16Sat
2 stopsDelta
30h 44mHKT-DCA
$1,715

Search by stops

Search by airline

Search by price

Recent one-way flight deals

9/10Tue
2 stopsCathay Pacific
24h 21mDCA-BKK
$560
8/31Sat
2 stopsAmerican Airlines
34h 30mDCA-BKK
$581
11/8Fri
2 stopsKorean Air
27h 25mDCA-BKK
$900
10/23Wed
3 stopsUnited Airlines
35h 05mDCA-BKK
$904
8/7Wed
2 stopsDelta
42h 05mDCA-HKT
$952
8/3Sat
2 stopsDelta
42h 05mDCA-HKT
$984
6/12Wed
2 stopsQatar Airways
25h 40mDCA-BKK
$1,045
6/23Sun
2 stopsQatar Airways
23h 55mDCA-BKK
$1,050
7/2Tue
3 stopsUnited Airlines
44h 15mDCA-BKK
$1,202
9/29Sun
2 stopsKorean Air
33h 20mDCA-BKK
$4,043

Search by stops

Search by airline

Search by price

Last minute flights from Reagan-National to Thailand

Last minute flight, train and bus deals

6/1Sat
multi-stopAmerican Airlines
30h 25mDCA-BKK
6/8Sat
multi-stopAmerican Airlines
31h 24mBKK-DCA
$1,466
6/3Mon
multi-stopAmerican Airlines
31h 40mDCA-BKK
6/16Sun
multi-stopAmerican Airlines
34h 32mBKK-DCA
$1,467
6/1Sat
multi-stopAmerican Airlines
30h 00mDCA-BKK
6/7Fri
multi-stopAmerican Airlines
27h 43mBKK-DCA
$1,494
6/1Sat
multi-stopAmerican Airlines
30h 00mDCA-BKK
6/14Fri
multi-stopAmerican Airlines
31h 24mBKK-DCA
$1,495
6/2Sun
multi-stopQatar Airways
24h 55mDCA-BKK
6/25Tue
multi-stopQatar Airways
27h 29mBKK-DCA
$1,577
6/2Sun
multi-stopQatar Airways
24h 55mDCA-BKK
6/7Fri
multi-stopQatar Airways
28h 20mBKK-DCA
$1,606
5/31Fri
multi-stopAir Canada
25h 40mDCA-BKK
7/5Fri
multi-stopAir Canada
25h 14mBKK-DCA
$3,234
6/2Sun
multi-stopUnited Airlines
44h 15mDCA-BKK
6/9Sun
multi-stopUnited Airlines
26h 43mBKK-DCA
$5,458
6/2Sun
multi-stopANA
26h 35mDCA-BKK
7/21Sun
multi-stopANA
27h 29mBKK-DCA
$10,332
6/1Sat
multi-stopAir Canada
25h 40mDCA-BKK
6/2Sun
multi-stopAir Canada
32h 22mBKK-DCA
$11,090

Search by stops

Search by airline

Search by price

Reagan Washington National Airport - Thailand Flights

Departure:

Reagan Washington National Airport (DCA)United States

Return flight deals:

Thailand - Reagan Washington National Airport

Cabin classes: