IAD

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Everything you should know

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.
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Top routes
DMK - IAD
Cheapest • 9% average savings
BKK - IAD
Most popular
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When to book
15 weeks
in advance
Our data shows that travellers who book at least 15 weeks in advance save around 23% compared to booking last minute.
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When to travel
March
Cheapest • 10% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Jeddah King Abdulaziz Intl (JED)
Cheapest • Avg ฿31,364 (return)
Istanbul (IST)
Shortest trip • 21h 59m (one-way)
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We hope you enjoy your trip to Washington, D.C. Dulles Intl Airport!
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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

Multiple Airlines Logo
TH1  Glasgow Thorntonhall-IAD Washington Dulles Airport
22757 kmmulti-stop
Multiple Airlines Logo
IAD  Washington Dulles Airport-TH1 Glasgow Thorntonhall
22757 kmmulti-stop
Multiple Airlines
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 with more confidence.

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

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Bangkok to Washington, D.C. Dulles Intl Airport. It's 10% cheaper than the average day, while Saturday is the most expensive, with prices 6% higher.

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 ฿35,216 return.
•February (฿41,530) and June (฿40,585) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 17% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights 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 23% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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

Low season

August
Beat the crowds with an average 44% drop in travellers.
The most popular month to fly with an average 73% increase in travellers.

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 answers about this route, including flight times, airports, airlines, and booking tips.

  • 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

  • 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 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.

  • 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 ฿35,322 to ฿41,757, with an average of ฿38,959 over the past 12 months. Anything below ฿35,322 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 6% above the ฿38,959 route average. Book 15 weeks before departure for the lowest fares.

  • 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 rental companies, with daily rates starting from around ฿805 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Sixt
    • Thrifty

  • 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 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:

    • Incheon Intl (ICN) – 32% of one-stop connections
    • Doha Hamad Intl (DOH) – 29% of one-stop connections
    • Taipei City Taiwan Taoyuan Intl (TPE) – 12% of one-stop connections
    • Abu Dhabi Zayed Intl (AUH) – 11% of one-stop connections

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

    Yes. Flexible dates can save you up to 16% on flights from Bangkok to Washington, D.C. Dulles Intl Airport. Friday is the cheapest departure day at ฿35,351 return on average, while Saturday is the most expensive at ฿41,598, a difference of ฿6,246.

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

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

    Flying via Istanbul (IST) gives the shortest average 1-stop total travel time of 21h 59m, compared to 22h 14m via Dubai Intl (DXB) and 22h 55m via Taipei City Taiwan Taoyuan Intl (TPE).

  • 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.

  • 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.

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 and avoid flying on Saturday. On this route, Friday flights average ฿35,351, which is about ฿6,246 less than Saturday fares (15% 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 23% 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 ฿35,216 return in that month – typically ฿6,314 less than the most expensive month, which is February (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.