$397 Find Cheap Flights from Washington, D.C. to Bangkok - Compare and Save

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Everything you should know

Cheapest round-trip
$804
Typical prices: $920-$1,324
SAUDIA
Thu 11/1Sun 11/11
IAD - BKK • 1 stop
Cheapest one-way
$398
Typical prices: $478-$720
Etihad Airways
Fri 11/9
IAD - BKK • 1 stop
Nonstop flights
There are currently no direct flights between Washington, D.C. Dulles Intl Airport and Bangkok. You'll need to take a connecting flight to reach the destination.
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Top routes
Cheapest • 9% average savings
Most popular
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When to book
in advance
Our data shows that travelers 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 layover airports
Cheapest • Avg $906 (round-trip)
Shortest trip • 22h 28m (one-way)
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Flight Deals

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

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

Recent round-trip flight deals from Washington, D.C. to Bangkok

Sun, Nov 1 - Wed, Nov 11
SAUDIA Logo
5:50 pm - 1:40 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
31h 50m1 stop Riyadh King Khaled Intl
SAUDIA Logo
3:20 pm - 1:50 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
34h 30m1 stop Jeddah King Abdulaziz Intl
$804SAUDIA
Sat, Nov 28 - Fri, Dec 18
Etihad Airways Logo
2:35 pm - 11:45 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
33h 10m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
2:40 pm - 9:05 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
30h 25m1 stop Abu Dhabi Zayed Intl
$881Etihad Airways
Mon, Feb 15 - Tue, Feb 23
Etihad Airways Logo
2:35 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
28h 40m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
7:55 pm - 9:05 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
25h 10m1 stop Abu Dhabi Zayed Intl
$888Etihad Airways
Thu, Oct 1 - Thu, Oct 15
Qatar Airways Logo
11:05 am - 8:25 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
22h 20m1 stop Doha Hamad Intl
Qatar Airways Logo
2:30 am - 3:40 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
24h 10m1 stop Doha Hamad Intl
$889Qatar Airways
Thu, Oct 8 - Wed, Oct 21
Qatar Airways Logo
11:05 am - 2:25 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
40h 20m1 stop Doha Hamad Intl
Qatar Airways Logo
3:00 am - 3:40 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
23h 40m1 stop Doha Hamad Intl
$892Qatar Airways
Wed, Jan 20 - Wed, Feb 3
Korean Air Logo
11:50 am - 12:20 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
24h 30m1 stop Incheon Intl
Korean Air Logo
9:40 pm - 9:50 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
24h 10m1 stop Incheon Intl
$893Korean Air
Wed, Jan 13 - Wed, Jan 27
Korean Air Logo
11:50 am - 11:05 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
23h 15m1 stop Incheon Intl
Korean Air Logo
1:05 am - 5:30 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
28h 25m2 stops Incheon Intl New York John F Kennedy Intl
$895Korean Air
Fri, Oct 30 - Sat, Nov 7
SAUDIA Logo
6:50 pm - 1:40 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
31h 50m1 stop Riyadh King Khaled Intl
SAUDIA Logo
3:20 pm - 2:45 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
35h 25m1 stop Riyadh King Khaled Intl
$897SAUDIA
Wed, Oct 7 - Wed, Oct 14
JetBlue Logo
9:00 pm - 7:35 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
23h 35m1 stop Doha Hamad Intl
JetBlue Logo
3:00 am - 3:40 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
23h 40m1 stop Doha Hamad Intl
$910JetBlue
Tue, Feb 2 - Fri, Jul 9
JetBlue Logo
8:05 pm - 6:15 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
22h 10m1 stop Doha Hamad Intl
JetBlue Logo
8:00 pm - 8:45 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
23h 45m1 stop Doha Hamad Intl
$911JetBlue
Booking Insights

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

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

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Bangkok?

Round-trip flights from Washington, D.C. Dulles Intl Airport to Bangkok start at $804. Prices are below average for this route right now, with typical round-trip fares ranging from $920 to $1,324. The lowest price found in the past 5 days was $804 on SAUDIA.

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

Tuesday is the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Bangkok, it is 6% cheaper than the average day. Saturday is the most expensive day with flight prices 11% 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. Dulles Intl Airport to Bangkok?

  • September is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Bangkok at $937 round-trip.
  • December ($1,822) and June ($1,289) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 94% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Bangkok flights

Low season

August

Cheapest flight

$398
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 71% increase in price.
Flight 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 round-trip price

Your Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Bangkok?

    Flights from Washington, D.C. Dulles Intl Airport to Bangkok usually depart from Washington, D.C. Dulles Intl (IAD) and may arrive at several airports in Bangkok area, including Bangkok Suvarnabhumi (BKK) and Bangkok Don Mueang Intl (DMK).

  • What cabin classes can I book on flights from Washington, D.C. Dulles Intl Airport to Bangkok?

    Four cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to Bangkok:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

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

    One-stop flights from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Bangkok?

    Yes. Being flexible with your travel dates can save you up to 16% on the Washington, D.C. Dulles Intl Airport to Bangkok route. Tuesday is the cheapest departure day at $1,004 round-trip on average, while Saturday is the most expensive at $1,192, a difference of $188. 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 Pratunam, Terminal 21 and Phrom Phong BTS Skytrain Station. These are among the most viewed places in Bangkok on KAYAK.

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

    Last-minute fares on this route - booked within 2 weeks of departure - run 12% above the route average of $1,065. Book 17 weeks before departure for the lowest fares.

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

    A nonstop flight from Washington, D.C. Dulles Intl Airport to Bangkok takes 0h 00m, covering 8,787 miles.

  • Do I need a passport to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Bangkok looking right now?

    One-way fares from Washington, D.C. Dulles Intl Airport to Bangkok are currently lower than usual. Average one-way flight prices are about $438, which is 24% below the typical average for this route.

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

    Flying via Vancouver Intl (YVR) gives the shortest average 1-stop total travel time at 22h 28m, compared with 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. Dulles Intl Airport and Bangkok?

    Bangkok is 11 hours ahead of Washington, D.C. Dulles Intl Airport (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 $13:

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

    Near Bangkok Don Mueang Intl Airport (DMK) — daily rates from around $7:

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

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

    Round-trip flights from Washington, D.C. Dulles Intl Airport to Bangkok range from $920 to $1,324, with an average of $1,065 over the past 12 months. Anything below $920 counts as a good deal.

Your guide to booking Washington, D.C. Dulles Intl Airport to Bangkok flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Tuesday departure instead of Saturday. On this route, Tuesday flights average $1,004 - about $188 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. Dulles Intl Airport to Bangkok trip for September. Fares historically average $937 round-trip in that month - typically $885 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
    · B-Your Home Hotel Donmueang Airport Bangkok
    · Don Muang 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 rental