IAD

฿17,231 Find Cheap Flights from Bangkok to Washington, D.C. – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 16% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest return flight
฿27,379
Typical prices: ฿36,369-฿40,650
Thai Airways
Mon 1/10Wed 17/10
BKK - IAD • 1 stop
Cheapest one-way flight
฿17,231
Typical prices: ฿21,788-฿34,876
Multiple Airlines
Thu 8/11
DMK - IAD • 2 stops
Direct flights
Not available
There are currently no direct flights between Bangkok and Washington, D.C. Dulles Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
Top routes
DMK - IAD
Cheapest • 10% average savings
BKK - IAD
Most popular
Insights
Insights
When to book
15 weeks
in advance
Our data shows that travellers who book at least 15 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
When to travel
March
Cheapest • 12% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Jeddah King Abdulaziz Intl (JED)
Cheapest • Avg ฿30,605 (return)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 21h 43m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Bangkok to Dulles Intl

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

Recent return flight deals from Bangkok to Dulles Intl

Sat 19 Dec - Fri 15 Jan
Thai Airways Logo
12:40 - 20:55BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
20h 15m1 stop Taipei City Taiwan Taoyuan Intl
Thai Airways Logo
23:55 - 10:50IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
22h 55m1 stop Taipei City Taiwan Taoyuan Intl
฿27,379Thai Airways
Thu 1 Oct - Sat 17 Oct
Thai Airways Logo
17:15 - 22:00BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
39h 45m1 stop Taipei City Taiwan Taoyuan Intl
Thai Airways Logo
01:15 - 21:35IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
33h 20m1 stop Taipei City Taiwan Taoyuan Intl
฿27,379Thai Airways
Fri 11 Dec - Sat 2 Jan
Thai Airways Logo
12:40 - 20:55BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
20h 15m1 stop Taipei City Taiwan Taoyuan Intl
Thai Airways Logo
23:55 - 10:50IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
22h 55m1 stop Taipei City Taiwan Taoyuan Intl
฿27,412Thai Airways
Sun 20 Dec - Tue 12 Jan
เอทิฮัดแอร์เวย์ Logo
02:55 - 09:05BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
42h 10m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
14:35 - 18:00IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
39h 25m1 stop Abu Dhabi Zayed Intl
฿32,519เอทิฮัดแอร์เวย์
Mon 26 Oct - Tue 12 Jan
เอทิฮัดแอ�ร์เวย์ Logo
02:55 - 10:05BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
42h 10m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
14:35 - 18:00IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
39h 25m1 stop Abu Dhabi Zayed Intl
฿32,552เอทิฮัดแอร์เวย์
Wed 4 Nov - Wed 31 Mar
เอทิฮัดแอร์เวย์ Logo
08:30 - 09:05BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
36h 35m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
15:10 - 07:15IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
29h 05m1 stop Abu Dhabi Zayed Intl
฿32,552เอทิฮัดแอร์เวย์
Mon 9 Nov - Sun 22 Nov
United Airlines Logo
09:10 - 09:10BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
36h 00m1 stop Tokyo Haneda
United Airlines Logo
13:15 - 11:30IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
34h 15m3 stops Chicago O'Hare Intl Los Angeles Hong Kong Intl
฿33,837United Airlines
Thu 1 Oct - Sun 18 Oct
United Airlines Logo
09:35 - 10:05BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
35h 30m1 stop Tokyo Haneda
United Airlines Logo
08:20 - 04:35IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
33h 15m2 stops Chicago O'Hare Intl Tokyo Haneda
฿33,870United Airlines
Fri 6 Nov - Sun 22 Nov
Korean Air Logo
23:15 - 09:50BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
22h 35m1 stop Incheon Intl
Korean Air Logo
11:50 - 00:20IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
24h 30m1 stop Incheon Intl
฿37,988Korean Air
Sat 7 Nov - Sun 22 Nov
Korean Air Logo
23:15 - 09:50BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
22h 35m1 stop Incheon Intl
Korean Air Logo
11:50 - 00:20IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
24h 30m1 stop Incheon Intl
฿37,988Korean Air
Booking Insights

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

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

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

Return flights from Bangkok to Washington, D.C. Dulles Intl Airport start at ฿27,379. Prices are below average for this route right now, with typical return fares ranging from ฿36,369 to ฿40,650. The lowest price found in the past 5 days was ฿27,379 on Thai Airways.

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

Friday is the cheapest day of the week to fly from Bangkok to Washington, D.C. Dulles Intl Airport and is 5% cheaper than the average day. Monday is the most expensive day with flight prices 2% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • March is the cheapest month to fly from Bangkok to Washington, D.C. Dulles Intl Airport at ฿33,968 return.
  • January (฿40,525) and February (฿39,965) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 19% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Bangkok to Washington, D.C. Dulles Intl Airport are cheapest 15 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 Bangkok to Washington, D.C. Dulles Intl Airport flights

Low season

January

Cheapest flight

฿17,231
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (1% more expensive on average)
Flights from Bangkok Don Mueang Intl Airport to Washington, D.C. Dulles Intl Airport

When to book flights from Bangkok to Dulles Intl

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

Your Bangkok to Washington, D.C. Dulles Intl Airport flight questions, answered

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

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

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

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

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

    • Economy class
    • Premium Economy Class
    • Business Class

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

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

    • Doha Hamad Intl (DOH) – 46% of one-stop connections
    • Incheon Intl (ICN) – 31% of one-stop connections
    • Abu Dhabi Zayed Intl (AUH) – 8% of one-stop connections
    • Dubai Intl (DXB) – 5% 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 Bangkok to Washington, D.C. Dulles Intl Airport?

    Yes. Being flexible with your travel dates can save you up to 8% on the Bangkok to Washington, D.C. Dulles Intl Airport route. Friday is the cheapest departure day at ฿36,736 return on average, while Monday is the most expensive at ฿39,602, a difference of ฿2,866. 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 Washington, D.C. Dulles Intl Airport?

    Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Vietnam Veterans Memorial and Nationals Park. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

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

    Last-minute fares on this route (booked within 2 weeks of departure) run 7% above the route average of ฿38,568. Book 15 weeks before departure for the lowest fares.

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

    A direct flight from Bangkok to Washington, D.C. Dulles Intl Airport takes 0h 00m, covering 22,757 km.

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

    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.

  • Have flight prices from Bangkok to Washington, D.C. Dulles Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about ฿27,379 to ฿251,254. That means the highest observed fare was about 9x higher than the lowest one.

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

    One-way fares from Bangkok to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about ฿23,544, which is 7% below the typical average for this route.

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

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time of 21h 43m, compared to 22h 02m via Istanbul (IST) and 22h 14m via Dubai Intl (DXB).

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

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

  • Which car hire options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car hire companies, with daily rates starting from around ฿785 for economy cars. Top options include:
    • Dollar
    • Budget
    • Hertz
    • Sixt
    • Thrifty

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

    Return flights from Bangkok to Washington, D.C. Dulles Intl Airport range from ฿36,369 to ฿40,650, with an average of ฿38,568 over the past 12 months. Anything below ฿36,369 counts as a good deal.

Your guide to booking Bangkok to Washington, D.C. Dulles Intl Airport 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 Friday departure instead of Monday. On this route, Friday flights average ฿36,736 – about ฿2,866 less than Monday (7% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 15 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 Bangkok to Washington, D.C. Dulles Intl Airport trip for March. Fares historically average ฿33,968 return in that month – typically ฿6,556 less than the most expensive month, which is January (based on the last 12 months).

More options for your flight from Bangkok to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car hire

Car rentals in Washington, D.C.
Hotels in Washington, D.C.