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Flights from Bangkok to Washington D.C.

Hi, I've summed up all the key info for Bangkok to Washington D.C. flights

Cheapest one-way

$ 484
Air Premia Thu, Oct 8

49% below next 30d avg. ($949)

Cheapest round-trip

$ 747
Saudia Tue, Oct 6

When to travel

October Cheapest month
July Peak month

Recommended airlines

With a lowest one-way fare of $484 , travelers can expect an average price of $949 for upcoming trips, while round-trip tickets start at $747 . You can arrive at any of the following airports in Washington D.C.: Dulles International Airport (IAD) , and Ronald Reagan Washington National Airport (DCA) . Flights from Suvarnabhumi Airport to Dulles International Airport (BKK-IAD) are by far the most popular option for this route. To secure the best rates, booking 40 days in advance is recommended, and the cheapest travel days are Tuesday, Wednesday, and Saturday .

Updated 2d ago · This content is an AI-powered summary based on Trip.com data. Prices and availability are subject to change. Please refer to actual prices, availability, and travel conditions.

Explore the cheapest one-way and round-trip flights from Bangkok to Washington D.C. over the next 90 days, with one-way fares from $484 and round-trip from $747. Based on Trip.com's latest 7-day flight data.

      • BKK 3:25 PM
        35h 20m
        1 stop
        IAD 3:45 PM
        Bangkok - Washington D.C. | Tue, Oct 6 | Saudia
        IAD 6:50 PM
        31h 55m
        1 stop
        BKK 1:45 PM
        Washington D.C. - Bangkok | Fri, Oct 9 | Saudia
        $747 $922
        19% off
        19% off
        $922 $747
      • BKK 3:25 PM
        35h 20m
        1 stop
        IAD 3:45 PM
        Bangkok - Washington D.C. | Tue, Sep 15 | Saudia
        IAD 6:50 PM
        31h 55m
        1 stop
        BKK 1:45 PM
        Washington D.C. - Bangkok | Fri, Sep 18 | Saudia
        $763 $922
        17% off
        17% off
        $922 $763
      • BKK 3:20 PM
        34h 30m
        1 stop
        IAD 1:50 PM
        Bangkok - Washington D.C. | Mon, Nov 2 | Saudia
        IAD 5:50 PM
        31h 50m
        1 stop
        BKK 1:40 PM
        Washington D.C. - Bangkok | Fri, Nov 6 | Saudia
        $764 $922
        17% off
        17% off
        $922 $764
      • BKK 3:20 PM
        34h 30m
        1 stop
        IAD 1:50 PM
        Bangkok - Washington D.C. | Wed, Nov 4 | Saudia
        IAD 5:50 PM
        31h 50m
        1 stop
        BKK 1:40 PM
        Washington D.C. - Bangkok | Sun, Nov 8 | Saudia
        $766
        17% off
        $922 $766
      • BKK 1:15 AM
        24h 35m
        1 stop
        IAD 1:50 PM
        Bangkok - Washington D.C. | Thu, Nov 5 | Saudia
        IAD 5:50 PM
        31h 50m
        1 stop
        BKK 1:40 PM
        Washington D.C. - Bangkok | Sat, Nov 7 | Saudia
        $776
        16% off
        $922 $776
      • BKK 3:20 PM
        34h 30m
        1 stop
        IAD 1:50 PM
        Bangkok - Washington D.C. | Fri, Nov 6 | Saudia
        IAD 5:50 PM
        31h 50m
        1 stop
        BKK 1:40 PM
        Washington D.C. - Bangkok | Sun, Nov 8 | Saudia
        $791
        14% off
        $922 $791
      • BKK 3:25 PM
        35h 20m
        1 stop
        IAD 3:45 PM
        Bangkok - Washington D.C. | Thu, Oct 1 | Saudia
        IAD 6:50 PM
        31h 55m
        1 stop
        BKK 1:45 PM
        Washington D.C. - Bangkok | Sun, Oct 4 | Saudia
        $796
        14% off
        $922 $796
      • BKK 3:20 PM
        35h 25m
        1 stop
        IAD 2:45 PM
        Bangkok - Washington D.C. | Sat, Nov 7 | Saudia
        IAD 5:50 PM
        41h 40m
        1 stop
        BKK 11:30 PM
        Washington D.C. - Bangkok | Sat, Nov 14 | Saudia
        $809
        12% off
        $922 $809
      • BKK 3:25 PM
        35h 20m
        1 stop
        IAD 3:45 PM
        Bangkok - Washington D.C. | Thu, Sep 24 | Saudia
        IAD 6:50 PM
        31h 55m
        1 stop
        BKK 1:45 PM
        Washington D.C. - Bangkok | Sun, Sep 27 | Saudia
        $810
        12% off
        $922 $810
      • BKK 5:15 PM
        39h 45m
        1 stop
        IAD 10:00 PM
        Bangkok - Washington D.C. | Thu, Oct 22 | Thai Airways
        IAD 1:15 AM
        22h 35m
        1 stop
        BKK 10:50 AM
        Washington D.C. - Bangkok | Sun, Oct 25 | Thai Airways
        $811
        12% off
        $922 $811
      • BKK 1:00 PM
        17h 25m
        1 stop
        WAS 2:00 PM
        Bangkok - Washington D.C. | Sun, Sep 13 | Normal Airline
        WAS 3:00 PM
        6h
        Nonstop
        BKK 4:00 PM
        Washington D.C. - Bangkok | Tue, Sep 15 | Normal Airline
        Find more flights
        Find more flights
      • BKK 10:45 PM
        23h 5m
        1 stop
        IAD 10:50 AM
        Bangkok - Washington D.C. | Thu, Oct 8 | Air Premia
        $484 $581
        17% off
        17% off
        $581 $484
      • BKK 10:45 PM
        23h 5m
        1 stop
        IAD 10:50 AM
        Bangkok - Washington D.C. | Sun, Oct 4 | Air Premia
        $486 $581
        16% off
        16% off
        $581 $486
      • BKK 10:55 PM
        33h 40m
        1 stop
        IAD 8:35 PM
        Bangkok - Washington D.C. | Sun, Nov 1 | Air Premia
        $486 $581
        16% off
        16% off
        $581 $486
      • BKK 10:55 PM
        33h 40m
        1 stop
        IAD 8:35 PM
        Bangkok - Washington D.C. | Tue, Nov 3 | Air Premia
        $486
        16% off
        $581 $486
      • BKK 10:45 PM
        23h 5m
        1 stop
        IAD 10:50 AM
        Bangkok - Washington D.C. | Tue, Oct 6 | Air Premia
        $486
        16% off
        $581 $486
      • BKK 10:55 PM
        33h 40m
        1 stop
        IAD 8:35 PM
        Bangkok - Washington D.C. | Tue, Nov 10 | Air Premia
        $487
        16% off
        $581 $487
      • BKK 10:55 PM
        33h 40m
        1 stop
        IAD 8:35 PM
        Bangkok - Washington D.C. | Thu, Nov 5 | Air Premia
        $487
        16% off
        $581 $487
      • BKK 10:55 PM
        33h 40m
        1 stop
        IAD 9:35 PM
        Bangkok - Washington D.C. | Sun, Oct 25 | Air Premia
        $504
        13% off
        $581 $504
      • BKK 10:45 PM
        23h 5m
        1 stop
        IAD 10:50 AM
        Bangkok - Washington D.C. | Thu, Oct 1 | Air Premia
        $506
        13% off
        $581 $506
      • BKK 10:55 PM
        33h 40m
        1 stop
        IAD 8:35 PM
        Bangkok - Washington D.C. | Sun, Nov 8 | Air Premia
        $511
        12% off
        $581 $511
      • BKK 1:00 PM
        17h 25m
        1 stop
        WAS 2:00 PM
        Bangkok - Washington D.C. | Sun, Sep 13 | Normal Airline
        Find more flights
        Find more flights

Which airlines are the most popular for Bangkok to Washington D.C. flights?

The most popular airlines flying from Bangkok to Washington D.C. are Air Premia, Thai Airways, and Qatar Airways, among 11 carriers on this route. Air Premia offers the lowest fares. Based on Trip.com's flight booking data from the previous 12 months.
Air Premia logo Air Premia
Thai Airways logo Thai Airways
Qatar Airways logo Qatar Airways
Turkish Airlines logo Turkish Airlines
All Nippon Airways logo All Nippon Airways
Flydubai logo Flydubai
Japan Airlines logo Japan Airlines
Saudia logo Saudia
Emirates logo Emirates
EVA Air logo EVA Air
Asiana Airlines logo Asiana Airlines
Airlines are determined based on actual purchased flight tickets from Bangkok to Washington D.C. according to previous 12 months data from Trip.com.

Flight Info | Bangkok to Washington D.C.

The distance between Bangkok and Washington D.C. is approximately 14,158.76 km. Based on Trip.com's data travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight price $484
Cheapest round-trip ticket price $747
Off-season for travel October
Peak season for travel July
Flight distance 14,158.76 km
Popular airline Air Premia
Flight statistics for the Bangkok–Washington D.C. route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from Bangkok to Washington D.C.

Which month has the cheapest one-way flights from Bangkok to Washington D.C.?

The average price of one-way flights from Bangkok to Washington D.C. purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Bangkok to Washington D.C. is November, with an average price of $717; while the month with the highest flight price is usually January, with an average price of up to $1,205.

$1,205
$961
$717
$473
    Cheapest
  • $757
    Sep
  • $845
    Oct
  • $717
    Nov
  • $790
    Dec
  • $1,205
    Jan
  • $851
    Feb
  • $858
    Mar
  • $779
    Apr
  • $812
    May
  • $746
    Jun
  • $908
    Jul
  • $938
    Aug

What is the cheapest month for round-trip flights from Bangkok to Washington D.C.?

Average price of round-trip flights from Bangkok to Washington D.C. purchased by Trip.com users by month over the past 12 months

According to historical data from Trip.com, the lowest prices for flights from Bangkok to Washington D.C. are found during February, with an average price of $1,137. Conversely, the highest prices are found during January, with an average price of up to $1,769.

$1,769
$1,453
$1,137
$821
    Cheapest
  • $1,281
    Sep
  • $1,279
    Oct
  • $1,297
    Nov
  • $1,573
    Dec
  • $1,769
    Jan
  • $1,137
    Feb
  • $1,532
    Mar
  • $1,713
    Apr
  • $1,361
    May
  • $1,364
    Jun
  • $1,440
    Jul
  • $1,688
    Aug

Frequently Asked Questions

  • What are the cheapest flights from Bangkok to Washington D.C. (BKK-WAS)?

    Based on Trip.com data, Air Premia offers one-way fares as low as $484 on Cheapest nonstop routes (e.g. BKK to IAD on Thu, Oct 8), while Saudia offers Cheapest nonstop round-trips from $747 departing on Tue, Oct 6 and returning on Fri, Oct 9.
  • At the moment, you can catch a nonstop flight from Bangkok to Washington D.C. with the following airlines, including: Flydubai Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Bangkok to Washington D.C. is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Bangkok to Washington D.C., you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Oct 8, with one-way flights priced at just $484.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Premia.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Washington D.C. travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Bangkok to Washington D.C. is October, when demand for travel is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Bangkok to Washington D.C. on September 17, 2026 with Thai Airways, with prices starting at $518.
  • You can arrive at any of the following airports in Washington D.C.: Dulles International Airport (IAD), and Ronald Reagan Washington National Airport (DCA). Flights from Suvarnabhumi Airport to Dulles International Airport (BKK-IAD) are by far the most popular option for this route.
  • The time difference between Washington D.C. and Bangkok is 12h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Bangkok to Washington D.C. is $949. Fares vary by travel date, airline and availability.
  • Enter Bangkok and Washington D.C., choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.
  • Jetblue Airwaysare the most popular budget airlines flying from Bangkok to Washington D.C.. Check baggage, seat and payment fees before comparing the final price.

Explore More Popular Flights

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.