$318 Find Cheap Flights from Washington, D.C. to Bangkok - Compare and Save

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Everything you should know

Cheapest round-trip
$843
Typical prices: $926-$1,321
Etihad Airways
Fri 12/7Sun 12/23
IAD - BKK • 1 stop
Cheapest one-way
$318
Typical prices: $473-$712
AIR PREMIA
Mon 3/19
IAD - BKK • 1 stop
Nonstop flights
Not available
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
IAD - BKK
Cheapest • 13% average savings
IAD - DMK
Most popular
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When to book
14 weeks
in advance
Our data shows that travelers who book at least 14 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
When to travel
September
Cheapest • 13% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Beijing Capital (PEK)
Cheapest • Avg $917 (round-trip)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 22h 23m (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

Mon, Dec 7 - Wed, Dec 23
Etihad Airways Logo
2:25 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
28h 50m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
8:30 am - 9:00 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
36h 30m1 stop Abu Dhabi Zayed Intl
$843Etihad Airways
Wed, Nov 25 - Mon, Dec 7
Multiple Airlines Logo
11:35 pm - 9:25 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
33h 50m1 stop Incheon Intl
Multiple Airlines Logo
7:30 pm - 6:30 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
35h 00m1 stop Beijing Capital
$843Multiple Airlines
Thu, Feb 4 - Fri, Feb 19
Etihad Airways Logo
2:25 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
28h 50m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
8:30 am - 9:00 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
36h 30m1 stop Abu Dhabi Zayed Intl
$845Etihad Airways
Wed, Mar 24 - Sun, Apr 4
AIR PREMIA Logo
12:35 am - 9:25 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
33h 50m1 stop Incheon Intl
AIR PREMIA Logo
10:45 pm - 9:35 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
33h 50m1 stop Incheon Intl
$847AIR PREMIA
Wed, Nov 25 - Tue, Apr 20
AIR PREMIA Logo
11:35 pm - 9:25 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
33h 50m1 stop Incheon Intl
AIR PREMIA Logo
10:45 pm - 9:35 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
33h 50m1 stop Incheon Intl
$848AIR PREMIA
Mon, Nov 16 - Thu, Nov 26
Ethiopian Air Logo
10:00 am - 12:30 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
38h 30m1 stop Addis Ababa Bole
Ethiopian Air Logo
1:35 am - 8:00 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
42h 25m2 stops Addis Ababa Bole Rome Fiumicino
$849Ethiopian Air
Sun, Nov 15 - Tue, Dec 8
Turkish Airlines Logo
1:30 pm - 4:15 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
26h 45m1 stop Istanbul
Turkish Airlines Logo
5:55 am - 7:25 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
25h 30m1 stop Istanbul
$863Turkish Airlines
Sun, Nov 15 - Thu, Dec 10
Turkish Airlines Logo
1:30 pm - 4:15 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
26h 45m1 stop Istanbul
Turkish Airlines Logo
5:55 am - 7:25 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
25h 30m1 stop Istanbul
$863Turkish Airlines
Thu, Mar 25 - Mon, Apr 5
Korean Air Logo
12:50 pm - 11:05 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
23h 15m1 stop Incheon Intl
Korean Air Logo
9:40 pm - 11:15 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
24h 35m1 stop Incheon Intl
$864Korean Air
Thu, Feb 25 - Mon, Mar 8
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
1:05 am - 9:50 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
20h 45m1 stop Incheon Intl
$864Korean Air
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 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 typically range from $926 to $1,321. The lowest price found in the past 5 days was $843, on Etihad Airways.

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Bangkok. It’s 6% cheaper than the average day, while Saturday is the most expensive, with prices 9% higher.

What’s 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 $939 round-trip.
•December ($1,760) and June ($1,292) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 87% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Washington, D.C. Dulles Intl Airport to Bangkok are cheapest 14 weeks before departure. Booking in this window typically costs about 24% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Washington, D.C. Dulles Intl Airport to Bangkok flights

Low season

September

Cheapest flight

$318
Beat the crowds with an average 20% drop in travelers.
The most popular month to fly with an average 37% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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.

  • 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 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 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 $926 to $1,321, with an average of $1,077 over the past 12 months. Anything below $926 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 16% above the $1,077 route average. Book 14 weeks before departure for the lowest fares.

  • 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 $419, which is 28% below the typical average for this route.

  • 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 averaging $30:

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

    Near Bangkok Don Mueang Intl Airport (DMK) — daily rates averaging $28:

    • Drive Car Rental
    • Alamo
    • Thai Rent
    • Chic Car Rent
    • Hertz

  • 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).

  • 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) - 33% of one-stop connections
    • Abu Dhabi Zayed Intl (AUH) - 24% of one-stop connections
    • Incheon Intl (ICN) - 14% of one-stop connections
    • Istanbul (IST) - 10% of one-stop connections

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

    Yes. Flexible dates can save you up to 15% on flights from Washington, D.C. Dulles Intl Airport to Bangkok. Wednesday is the cheapest departure day at $1,014 round-trip on average, while Saturday is the most expensive at $1,180, a difference of $166.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time at 22h 23m, compared with 22h 28m via Vancouver Intl (YVR) and 22h 48m via Dubai Intl (DXB).

  • 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 popular places can I visit in Bangkok?

    Some of the most popular sights in Bangkok are Pratunam, Siam Square and Thailand Cultural Center. These are among the most viewed places in Bangkok on KAYAK.

  • 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.

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 are flexible, aim for a Wednesday departure and avoid flying on Saturday. On this route, Wednesday flights average $1,014, about $166 less than Saturday fares (14% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 14 weeks before you fly. On this route, that window historically saves about 24% 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 $939 round-trip in that month - typically $821 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
    • Suvarnabhumi Ville Airport Hotel
    • Siam Mandarina Bangkok Suvarnabhumi Airport Hotel (Free Shuttle)

    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

Car rentals in Bangkok
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