฿13,152 Find Cheap Flights from Washington, D.C. to Bangkok – Compare and Save

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Everything you should know

Cheapest return flight
฿29,345
Typical prices: ฿30,435-฿43,738
เอทิฮัดแอร์เวย์
Thu 15/2Fri 23/2
IAD - BKK • 1 stop
Cheapest one-way flight
฿13,152
Typical prices: ฿15,910-฿24,638
เอทิฮัดแอร์เวย์
Fri 12/10
IAD - BKK • 1 stop
Direct flights
There are currently no direct flights between Washington, D.C. and Bangkok. You'll need to take a connecting flight to reach the destination.
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Top routes
Cheapest • 20% average savings
Most popular
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When to book
in advance
Our data shows that travellers who book at least 17 weeks in advance save around 17% compared to booking last minute.
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When to travel
Cheapest • 12% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg ฿29,946 (return)
Shortest trip • 22h 28m (one-way)
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We hope you enjoy your trip to Bangkok!
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Flight Deals

Cheap Flights from Washington, D.C. to Bangkok (WAS-BKK)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Washington, D.C. to Bangkok

Mon 25 Jan - Mon 8 Feb
เอทิฮัดแอร์เวย์ Logo
14:35 - 23:20IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
20h 45m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
08:30 - 09:05BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
36h 35m1 stop Abu Dhabi Zayed Intl
฿29,345เอทิฮัดแอร์เวย์
Mon 15 Feb - Tue 23 Feb
เอทิฮัดแอร์เวย์ Logo
14:35 - 07:15IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
28h 40m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
19:55 - 09:05BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
25h 10m1 stop Abu Dhabi Zayed Intl
฿29,345เอทิฮัดแอร์เวย์
Thu 1 Oct - Thu 15 Oct
Qatar Airways Logo
11:05 - 20:25IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
22h 20m1 stop Doha Hamad Intl
Qatar Airways Logo
02:30 - 15:40BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
24h 10m1 stop Doha Hamad Intl
฿29,378Qatar Airways
Thu 12 Nov - Sun 22 Nov
เอทิฮัดแอร์เวย์ Logo
14:35 - 18:00IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
39h 25m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
08:30 - 09:05BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
36h 35m1 stop Abu Dhabi Zayed Intl
฿29,411เอทิฮัดแอร์เวย์
Tue 10 Nov - Tue 1 Dec
Korean Air Logo
11:50 - 13:25IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
37h 35m1 stop Incheon Intl
Korean Air Logo
23:15 - 17:33BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
30h 18m2 stops Incheon Intl New York John F Kennedy Intl
฿29,444Korean Air
Wed 20 Jan - Wed 3 Feb
Korean Air Logo
11:50 - 00:20IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
24h 30m1 stop Incheon Intl
Korean Air Logo
21:40 - 09:50BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
24h 10m1 stop Incheon Intl
฿29,510Korean Air
Wed 13 Jan - Wed 27 Jan
Korean Air Logo
11:50 - 23:05IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
23h 15m1 stop Incheon Intl
Korean Air Logo
01:05 - 17:30BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
28h 25m2 stops Incheon Intl New York John F Kennedy Intl
฿29,576Korean Air
Sun 1 Nov - Thu 5 Nov
เตอร์กิชแอร์ไลน์ Logo
14:30 - 04:30IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
26h 00m1 stop Istanbul
เตอร์กิชแอร์ไลน์ Logo
23:10 - 12:45BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
25h 35m1 stop Istanbul
฿32,847เตอร์กิชแอร์ไลน์
Thu 5 Nov - Tue 10 Nov
เตอร์กิชแอร์ไลน์ Logo
14:30 - 04:30IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
26h 00m1 stop Istanbul
เตอร์กิชแอร์ไลน์ Logo
06:10 - 11:45BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
41h 35m1 stop Istanbul
฿32,881เตอร์กิชแอร์ไลน์
Tue 6 Oct - Fri 4 Dec
เตอร์กิชแอร์ไลน์ Logo
13:15 - 05:10IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
28h 55m1 stop Istanbul
เตอร์กิชแอร์ไลน์ Logo
06:10 - 19:25BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
25h 15m1 stop Istanbul
฿33,178เตอร์กิชแอร์ไลน์
Booking Insights

Price, demand, and travel trends for Washington, D.C. to Bangkok flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Washington, D.C. to Bangkok with more confidence.

How much is a return flight from Washington, D.C. to Bangkok?

Return flights from Washington, D.C. to Bangkok start at ฿29,345. Prices are below average for this route right now, with typical return fares ranging from ฿30,435 to ฿43,738. The lowest price found in the past 5 days was ฿29,345 on เอทิฮัดแอร์เวย์.

What is the cheapest Washington, D.C. to Bangkok flight route?

Washington, D.C. Dulles Intl Airport (IAD) to Bangkok Suvarnabhumi Airport (BKK) is the cheapest Washington, D.C. to Bangkok route, averaging ฿35,180 return. Other Washington, D.C. to Bangkok routes average ฿47,189, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Washington, D.C. to Bangkok?

Tuesday is the cheapest day of the week to fly from Washington, D.C. to Bangkok and is 6% cheaper than the average day. Saturday is the most expensive day with flight prices 12% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Washington, D.C. to Bangkok?

  • September is the cheapest month to fly from Washington, D.C. to Bangkok at ฿31,096 return.
  • December (฿59,218) and June (฿42,596) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 90% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Washington, D.C. to Bangkok the cheapest?

Flights from Washington, D.C. to Bangkok are cheapest 17 weeks before departure. Booking in this window typically costs about 17% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Washington, D.C. to Bangkok flights

Low season

April

Cheapest flight

฿13,152
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (68% more expensive on average)
Flights from Washington, D.C. Dulles Intl Airport to Bangkok Suvarnabhumi Airport

When to book flights from Washington, D.C. to Bangkok

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Bangkok based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Washington, D.C. to Bangkok flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • What airport should I use to fly out of Washington D.C.?

    The nice thing about this route is that there are great choices from all three area airports. From Washington Dulles International Airport, there is a one-stop flight aboard Turkish Airways, and from both Ronald Reagan Washington National Airport and Baltimore Washington International Airport (BWI), you can find two-stop flights aboard Air Canada.

  • What is one of the most sustainable airlines when flying from Washington, D.C. to Bangkok?

    JetBlue invests in modern and fuel-efficient aircraft to reduce its carbon emissions. The airline invests in sustainable aviation fuel (SAF) to reduce the carbon intensity of its flights. JetBlue has also implemented programs to reduce ground emissions and promote energy efficiency in its facilities. The airline has implemented recycling programs on board its aircraft and they aim to minimize single-use plastics.

  • Will I need a visa to fly from Washington D.C. to Bangkok?

    For short-term visits, most US citizens can obtain a tourist visa upon arrival at Bangkok's main international airport, Suvarnabhumi Airport. This visa is known as the Visa on Arrival (VOA) and allows for a stay of up to 30 days. Alternatively, you can also apply for a tourist visa in advance at the Royal Thai Embassy or Consulate in the United States. The tourist visa allows for a longer stay in Thailand, typically up to 60 days.

  • What is the benefit of flying in higher ticket tiers on Korean Air?

    Flying in higher ticket tiers on Korean Air, such as Prestige Class and First Class, offers cabins with more spacious seating. Many of the seats are often designed to recline into fully flat beds. Passengers have access to dedicated check-in counters, allowing for faster and more convenient check-in processes.

  • Which airports can I use when flying from Washington, D.C. to Bangkok?

    Flights from Washington, D.C. to Bangkok may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD), with arrivals available at airports in Bangkok such as Bangkok Suvarnabhumi (BKK) and Bangkok Don Mueang Intl (DMK).

  • Which cabin classes can I book on flights from Washington, D.C. to Bangkok?

    Only Economy class is available on flights from Washington, D.C. to Bangkok.

  • Which airports do connecting flights from Washington, D.C. to Bangkok pass through?

    One-stop flights from Washington, D.C. to Bangkok most commonly connect through:

    • Doha Hamad Intl (DOH) – 38% of one-stop connections
    • Abu Dhabi Zayed Intl (AUH) – 26% of one-stop connections
    • Istanbul (IST) – 11% of one-stop connections
    • Incheon Intl (ICN) – 10% of one-stop connections

    Doha Hamad Intl (DOH) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Washington, D.C. to Bangkok?

    Yes. Being flexible with your travel dates can save you up to 17% on the Washington, D.C. to Bangkok route. Tuesday is the cheapest departure day at ฿33,376 return on average, while Saturday is the most expensive at ฿39,853, a difference of ฿6,477. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Bangkok?

    Some of the most popular sights in Bangkok are Victory Monument, Thammasat University, and Centralworld. These are among the most viewed places in Bangkok on KAYAK.

  • How expensive are last-minute Washington, D.C. to Bangkok flights?

    Last-minute fares on this route (booked within 2 weeks of departure) run 12% above the route average of ฿35,336. Book 17 weeks before departure for the lowest fares.

  • How long is a flight from Washington, D.C. to Bangkok?

    A direct flight from Washington, D.C. to Bangkok takes 0h 00m, covering 22,762 km.

  • Do I need a passport to fly from Washington, D.C. to Bangkok?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Washington, D.C. to Bangkok looking right now?

    One-way fares from Washington, D.C. to Bangkok are currently lower than usual. Average one-way flight prices are about ฿17,580, which is 9% below the typical average for this route.

  • How much time can I save by choosing a different stopover airport from Washington, D.C. to Bangkok?

    Flying via Vancouver Intl (YVR) gives the shortest average 1-stop total travel time of 22h 28m, compared to 22h 37m via Dubai Intl (DXB) and 22h 38m via Taipei City Taiwan Taoyuan Intl (TPE).

  • What is the time difference between Washington, D.C. and Bangkok?

    Bangkok is 11 hours ahead of Washington, D.C. (Indochina Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available in Bangkok?

    Since Bangkok is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Bangkok Suvarnabhumi Airport (BKK) – daily rates from around ฿443:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Yesaway
    • Hertz

    Near Bangkok Don Mueang Intl Airport (DMK) – daily rates from around ฿224:

    • Drive Car Rental
    • Alamo
    • THAIRENTACAR
    • Enterprise Rent-A-Car
    • Chic Car Rent

  • How much should I expect to pay for a Washington, D.C. to Bangkok flight?

    Return flights from Washington, D.C. to Bangkok range from ฿30,435 to ฿43,738, with an average of ฿35,336 over the past 12 months. Anything below ฿30,435 counts as a good deal.

Your guide to booking Washington, D.C. to Bangkok flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure instead of Saturday. On this route, Tuesday flights average ฿33,376 – about ฿6,477 less than Saturday (16% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 17 weeks before you fly. On this route, that window historically saves about 17% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. to Bangkok trip for September. Fares historically average ฿31,096 return in that month – typically ฿28,122 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, hotels close to the airport you're flying into can be a convenient option.

    Near Bangkok Suvarnabhumi Airport

    · Regency Bangkok Suvarnabhumi Airpor
    · Siam Mandarina Bangkok Suvarnabhumi Airport Hotel (Free Shuttle)
    · Suvarnabhumi Ville Airport Hotel

    Near Bangkok Don Mueang Intl Airport

    · Amari Don Muang Airport Bangkok
    · The Royal Bee Apart Hotel
  • A great feature of Ronald Reagan Washington National Airport (DCA) is the convenience it offers travelers. An easy way to get to this airport from the center of the city is to take the Washington Metropolitan Area Transit Authority Blue Line subway, which can have you at the airport in about 10 minutes.
  • When traveling on one of the convenient flights offered by Turkish Airways between Washington Dulles International Airport (IAD) and Suvarnabhumi Airport (BKK), it is good to know that all passengers can take one carry-on bag with them and one personal item aboard the plane. Those in business class can take an additional carry-on bag on the plane.
  • Some great reasons to travel in the higher ticket tiers aboard Turkish Airways is that it often gives you access to their lounge in Concourse B on Washington Dulles International Airport (IAD) plus when you book a Business Class ticket on this airline, you get amazing amenities like the most comfortable seats, chef-created dining, and preferred check-in.
  • Kids from 5 to 11 traveling alone on Qatar Airways will use the airline's Unaccompanied Minor service. Qatar Airways charges a handling fee for the service. Qatar Airways staff will assist the child throughout the journey, from check-in to arrival.
  • When making this trip on JetBlue, those in the Blue Basic and Blue ticket tiers can check up to two bags both for a fee. Once you move up into the Mint ticket tier, you can take these same two checked bags for free as part of your ticket purchase.

More options for your flight from Washington, D.C. to Bangkok

Complete your trip to Bangkok with a hotel stay or car hire