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Find cheap flights from Washington, D.C. to Thailand from $422

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Thailand departing on 8/17. 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
Fri 7/5
Fri 7/12

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Best Thailand Flight Deals

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

Phuket City
Phuket City1 stop$1,038
Chiang Mai
Chiang Mai2 stops$1,149
Koh Samui
Koh Samui2 stops$1,203
Krabi
Krabi2 stops$1,207
Chiang Rai
Chiang Rai2 stops$1,176

Good to know

Low season

September

High season

December

Cheapest flight

$422
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Washington Dulles Airport to Bangkok Suvarnabhumi Airport

FAQs - booking Thailand flights

  • What are the visa requirements for traveling from Washington, D.C., to Thailand?

    If you are traveling to Thailand as a tourist and you will not be staying in the country for more than 30 days, there is no need to get a visa before your trip. If your trip is for any other purpose, it is advised that you check with the Royal Thai embassy about your particular visa requirements. Travelers should also remember they need a valid passport, and it is advised that the passport remain valid for at least six months from the date of entry.

  • What are some things to know about laws regarding driving with children were leaving my destination airport in Thailand?

    Because there are no specific laws regarding car child seats in Thailand, it is important for parents to remember that it might be difficult to rent car seats when they arrive in the country. Since that is the case, it is always best for parents to bring their own car seats with them to ensure the safety of their children during car travel.

  • What is a good example of a very sustainable airline on this route?

    Air India demonstrates a commitment to sustainability through various initiatives. The airline employs fuel-efficient aircraft, practices waste reduction, and invests in eco-friendly technologies. Air India prioritizes energy conservation, implements recycling programs, and focuses on reducing carbon emissions. Engaging in green practices, the airline contributes to a more sustainable aviation industry, aligning with global efforts to address environmental concerns and promote responsible air travel.

  • What are some benefits of upgrading to first class on a flight on Air China?

    Upgrading to First Class on Air China provides an elevated travel experience. Passengers enjoy luxurious and spacious seating, personalized service, and gourmet dining. Additional perks include priority check-in, expedited security procedures, increased baggage allowance, and access to exclusive airport lounges. Air China's First Class ensures a refined and indulgent journey, appealing to travelers seeking superior comfort and service.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Thailand from Washington, D.C. 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 Washington, D.C. 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 Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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 Washington, D.C. 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 3% cheaper than an evening flight, on average*.
  • Many travelers making their way to Thailand will make the Suvarnabhumi Airport (BKK) their initial airport destination. From Washington Dulles International Airport (IAD), a great way to make this trip is on a one-stop flight offered by Air India that has a layover at Indira Gandhi International Airport (DEL).
  • The Phuket International Airport (HKT) is a quite popular destination in Thailand. From Baltimore Washington International Airport (BWI), you can travel to this airport on a two-stop flight using Condor and Thai Airways with layovers at Frankfurt and Bangkok.
  • One of the easiest ways to get from Downtown Washington, D.C., to the Ronald Reagan Washington National Airport (DCA), is to travel on the Washington Metropolitan Area Transit Authority Blue Line, which can get you there in about 16 minutes.
  • When your final airport destination in Thailand is the Chiang Mai International Airport (CNX), you can travel here on a one-stop flight aboard Air China from Washington Dulles International Airport that makes a stop at Beijing Capital International Airport (PEK).
  • Passengers traveling flights aboard United Airlines from Washington Dulles International Airport will find that a great place to wait for their flight is in one of the five lounges this Airline offers in Concourses C and D.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Washington, D.C. to Thailand

Need help choosing which airline to fly with from Washington, D.C. 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 1138 reviews
8.1Food
8.2Entertainment
8.6Boarding
8.3Comfort
8.8Crew
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. :-(

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.

Flight arrived early, fantastic, since it is short flight, no food being served

On time take off and early arrival, what else can one want

My last few flights with Emirates have always been delayed at least a half an hour. When my layover is only an hour and a half to two hours, 30 minutes makes a big difference. I’m going to check out other airlines.

we bought trip insurance from you and could not use it. 'underrated' only return 50 % of trip cost. my doctor told me i have stage 4 cancer and that I might not live till the end of the month..

Flight got canceled without any prior information and it caused lot of trouble

Staff were friendly, and provided great service. The food was plentiful and delicious. Food could have been hotter.

I was traveling business purposes and I only had one carry on and a personal computer back pack . My carry on was 8.5 kg little more than allowable. At jfk airport check in they did not let me carry it . I was little disappointed.

More leg room and comfortable seats at least for long flights

The entertainment selections are amazing. But the live TV is sometimes spotty. If you’re going to have it, then have it. If you can’t make it consistent, then, perhaps it’s better not to have it. The crew are always cordial when approached, but they seem to do the minimum and sit around, talking to each other in the back of the plane during the flight. I realize that delays are not always predictable, but I missed my flight in Dubai because we left 90 minutes late from Washington. I will say that Emirates took very good care of me in Dubai. But I would rather not be delayed.

Probably the best flight I’ve ever been on. Emirates first class is leagues beyond British airways and Lufthansa’s.

Great flight. Comfortable seats, courteous service, and excellent selection for entertainment.

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

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.

Staff was very friendly. There is no on board entertainment, but it’s such a short flight that it doesn’t matter. We also got a meal which was nice and unexpected due to the length of the flight.

Flight was fine overall. What you would expect from economy seats. I did appreciate the amenities (eyemask, earplugs, small toothbrush and toothpaste, thin socks).

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.

Overnight flight in the old style Business class, but still very good.

I was in business class, without the business class amenities. Large seat with lots of legroom, but no TV or bed. Food was okay, but I did enjoy the Turkish red wine.

Excellent service and comfort from the moment you check in. Flight crew is hyper focused on making passengers comfortable and at ease. It’s like a flying hotel!

Only chicken as a meat dish through out the flight

Nothing really was great as such. Seen other no name airlines perform better.

Quality of service on board was very inconsistent. FA service primarily seemed robotic and they barely engaged with passengers

I’m unclear why I had to pay extra for assigned seats as Turkish airlines did not honor the seating. We were placed across the aisle from each other on TK 34, and were seated behind one another on TK 694. Because my name was misspelled on e-ticket (Klawiter, instead of Klawitter) I could not log onto website to get the connection gate number in Istanbul. The monitors in the airport were a jumbled mess 1/2 Arabic and 1/2 English.

The airplane from IAD to Istanbul was too old. The chairs were to tight and uncomfortable. I continued my travel from Istanbul to Bangkok. This airplane was better and newer than the first one. Even food was better.

On line check in needs a lot of improvement. I tried and gave up.

They use a smaller international plane and quarters are tighter, space smaller, and the flight is still 12 hours, then fight attendants are ruff, food is bad, cherry juice spilled by flight attendant and she comes back to ask why have we not changed yet could it be we didn’t have any clothes to change into and seat is all wet and we had to sit there for 12 hours

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

Recent round-trip flight deals

9/14Sat
1 stopTurkish Airlines
21h 15mIAD-BKK
9/21Sat
1 stopTurkish Airlines
23h 15mBKK-IAD
$712
10/12Sat
1 stopSAUDIA
31h 35mIAD-BKK
10/16Wed
1 stopSAUDIA
24h 30mBKK-IAD
$755
9/1Sun
1 stopQatar Airways
21h 30mIAD-BKK
9/15Sun
1 stopQatar Airways
31h 10mBKK-IAD
$967
9/10Tue
1 stopQatar Airways
22h 05mIAD-BKK
9/29Sun
1 stopQatar Airways
24h 40mBKK-IAD
$972
9/16Mon
1 stopEmirates
38h 05mIAD-HKT
9/26Thu
1 stopEmirates
23h 45mHKT-IAD
$1,154
9/3Tue
1 stopEmirates
38h 05mIAD-HKT
9/10Tue
1 stopEmirates
43h 45mHKT-IAD
$1,169
11/11Mon
2 stopsDelta
30h 10mBWI-BKK
11/18Mon
2 stopsDelta
22h 32mBKK-BWI
$1,440
10/6Sun
2 stopsDelta
30h 35mBWI-BKK
10/28Mon
2 stopsDelta
29h 15mBKK-BWI
$1,444
11/21Thu
2 stopsKorean Air
29h 20mBWI-BKK
11/30Sat
2 stopsKorean Air
54h 47mBKK-BWI
$1,548
11/16Sat
2 stopsKorean Air
29h 20mBWI-BKK
11/30Sat
2 stopsKorean Air
53h 02mBKK-BWI
$1,551

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Recent one-way flight deals

8/17Sat
1 stopSAUDIA
31h 35mIAD-BKK
$422
8/10Sat
3 stops
30h 45mIAD-BKK
$432
8/12Mon
1 stopTurkish Airlines
26h 25mIAD-BKK
$531
8/13Tue
1 stopTurkish Airlines
26h 25mIAD-BKK
$534
8/22Thu
1 stopQatar Airways
21h 30mIAD-BKK
$548
8/29Thu
1 stopQatar Airways
32h 15mIAD-BKK
$551
8/15Thu
2 stopsDelta
30h 32mBWI-BKK
$780
10/15Tue
2 stopsDelta
27h 40mBWI-CNX
$781
8/10Sat
2 stopsKorean Air
33h 15mBWI-BKK
$846
8/5Mon
2 stopsKorean Air
27h 37mBWI-CNX
$901

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Last minute flights from Washington, D.C. to Thailand

Last minute flight, train and bus deals

6/9Sun
multi-stopQatar Airways
21h 30mIAD-BKK
6/18Tue
multi-stopQatar Airways
24h 40mBKK-IAD
$1,336
6/10Mon
multi-stopQatar Airways
21h 30mIAD-BKK
6/16Sun
multi-stopQatar Airways
24h 40mBKK-IAD
$1,398
6/9Sun
multi-stopQatar Airways
21h 30mIAD-BKK
6/19Wed
multi-stopQatar Airways
42h 05mBKK-IAD
$1,401
6/10Mon
multi-stopQatar Airways
21h 30mIAD-BKK
7/3Wed
multi-stopQatar Airways
34h 00mBKK-IAD
$1,413
6/10Mon
multi-stopEmirates
46h 50mIAD-BKK
6/23Sun
multi-stopEmirates
33h 45mBKK-IAD
$2,272
6/10Mon
multi-stopDelta
27h 40mBWI-BKK
7/1Mon
multi-stopDelta
27h 42mBKK-BWI
$2,957
6/10Mon
multi-stopANA
33h 11mIAD-BKK
6/24Mon
multi-stopANA
31h 49mBKK-IAD
$7,095
6/7Fri
multi-stopANA
29h 10mIAD-BKK
6/9Sun
multi-stopANA
29h 15mBKK-IAD
$7,387
6/8Sat
multi-stopEmirates
21h 20mIAD-BKK
10/21Mon
multi-stopEmirates
40h 10mBKK-IAD
$8,031
6/10Mon
multi-stopEtihad Airways
26h 55mIAD-BKK
6/20Thu
multi-stopEtihad Airways
25h 05mBKK-IAD
$9,630

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