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$534+ Cheap flights from Dulles Intl (IAD) to Bangkok

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BKK
Feb 27 — Mrz 61
Do 2/27
Do 3/6
1 adult, Economy
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The best prices from Washington, D.C. Dulles Intl to Bangkok are usually found in September or October, booked 89 days in advance, depart on a Saturday or Tuesday and return on a Sunday

Cheap flight deals from Dulles Intl to Bangkok

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Bangkok (TH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated Februar 22, 2025.

Round-trip from

$945
(oojo)

One-way from

$534
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,206
From Washington, D.C. Dulles Intl to Bangkok
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One-way flight from Washington, D.C. Dulles Intl to Bangkok
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Highest demand for flights based on searches. 8% potential increase in price ($121 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Dulles Intl to Bangkok

Cheapest flights from Dulles Intl to Bangkok
Explore the most affordable flight options available from Dulles Intl to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Februar 22, 2025.

This CrystalTravel deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 9/210:05 pmIAD - BKK
1 stop22h 05mEtihad Airways
Mi 9/248:55 pmBKK - IAD
1 stop30h 40mEtihad Airways
Deal found 2/21$913
This oojo deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 3/155:35 pmIAD - BKK
2 stops37h 30mAir China
Mo 3/171:30 amBKK - IAD
1 stop24h 40mAir China
Deal found 2/21$981
This FlightHub deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 4/2912:30 pmIAD - BKK
1 stop39h 55mTurkish Airlines
Mi 5/146:45 amBKK - IAD
1 stop24h 00mTurkish Airlines
Deal found 2/21$996
This Etihad Airways deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 9/1410:05 pmIAD - DMK
2 stops32h 00mMultiple Airlines
Di 9/239:05 amDMK - IAD
2 stops42h 30mMultiple Airlines
Deal found 2/20$1,017
This China Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 2/257:00 amIAD - BKK
2 stops42h 05mMultiple Airlines
Di 4/1510:50 amBKK - IAD
2 stops29h 44mMultiple Airlines
Deal found 2/22$1,044
This FlightHub deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 3/227:10 pmIAD - BKK
1 stop31h 30mSAUDIA
Sa 3/293:20 pmBKK - IAD
2 stops35h 25mSAUDIA
Deal found 2/21$1,073
This oojo deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 3/99:05 pmIAD - BKK
2 stops35h 15mQatar Airways
Mi 3/193:00 amBKK - IAD
1 stop24h 55mQatar Airways
Deal found 2/22$1,103
This Booking.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 9/712:30 pmIAD - BKK
2 stops39h 20mIndiGo
Sa 9/203:50 pmBKK - IAD
2 stops38h 55mIndiGo
Deal found 2/20$1,104
This FlightHub deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 3/179:40 pmIAD - BKK
2 stops27h 50mEthiopian Air
Di 3/251:35 amBKK - IAD
2 stops29h 15mEthiopian Air
Deal found 2/21$1,149
This Air Canada deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 9/109:55 amIAD - BKK
2 stops27h 00mAir Canada
Mi 9/247:00 amBKK - IAD
2 stops25h 01mAir Canada
Deal found 2/21$1,206

Find flights from Dulles Intl to Bangkok within your budget

Customize your flight search to find flights from Dulles Intl to Bangkok that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Februar 22, 2025.

Fly from

Dulles Intl

Fly to

Bangkok

Route

Depart

Return

Price

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Di 4/29

10:05 pm-6:35 pm

1 stop33h 30m

Bangkok Suvarnabhumi

Mo 5/12

2:55 am-4:35 pm

1 stop24h 40m

$945

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sa 3/15

5:35 pm-6:05 pm

2 stops37h 30m

Bangkok Suvarnabhumi

Mo 3/17

1:30 am-3:10 pm

1 stop24h 40m

$981

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Di 4/29

12:30 pm-3:25 pm

1 stop39h 55m

Bangkok Suvarnabhumi

Mi 5/14

6:45 am-7:45 pm

1 stop24h 00m

$996

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Mo 4/21

10:00 pm-5:05 pm

2 stops32h 05m

Bangkok Don Mueang Intl

Mi 4/30

8:15 pm-4:35 pm

2 stops55h 20m

$1,019

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mo 3/10

6:48 pm-1:05 pm

2 stops31h 17m

Bangkok Suvarnabhumi

Mo 3/24

2:05 pm-5:34 am

2 stops26h 29m

$1,057

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sa 3/22

7:10 pm-1:40 pm

1 stop31h 30m

Bangkok Suvarnabhumi

Sa 3/29

3:20 pm-3:45 pm

2 stops35h 25m

$1,073

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

So 3/9

9:05 pm-7:20 pm

2 stops35h 15m

Bangkok Suvarnabhumi

Mi 3/19

3:00 am-4:55 pm

1 stop24h 55m

$1,103

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mo 3/17

9:40 pm-12:30 pm

2 stops27h 50m

Bangkok Suvarnabhumi

Di 3/25

1:35 am-7:50 pm

2 stops29h 15m

$1,149

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

So 6/15

12:30 pm-4:10 pm

2 stops40h 40m

Bangkok Suvarnabhumi

Sa 6/21

5:10 pm-7:45 pm

2 stops37h 35m

$1,183

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Di 3/4

11:50 am-11:20 pm

1 stop23h 30m

Bangkok Suvarnabhumi

Mi 3/19

1:00 am-10:50 am

1 stop20h 50m

$1,223

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 23 results
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Best time to book a flight from Dulles Intl to Bangkok

Have a flexible travel schedule? Discover the best time to fly to Bangkok from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Dulles Intl to Bangkok

Get recent, data-driven insights about flights from Dulles Intl to Bangkok including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Bangkok?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Bangkok. Price data was last updated on February 14, 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Bangkok may vary depending on when you book. For the best chance of a lower fare, look to book 89 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Bangkok (average of $976). Flying from Washington, D.C. Dulles Intl Airport to Bangkok in June is currently the most expensive (average of $1,580). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to BKK?

Find hourly flight availability from Dulles Intl to Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated Februar 22, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Bangkok in the afternoon. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Bangkok. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Bangkok flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Bangkok by month

Plan your trip to Bangkok by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bangkok ranges from 0.4 - 12.6 inches per month. September is typically the wettest month, when rainfall can reach 12.6 in. January is typically the driest time to visit Bangkok when rainfall is around 0.4 in.

Temperature in Bangkok by month

Plan your trip to Bangkok by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bangkok, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bangkok. Reviews last updated Februar 22, 2025.
Get a feel of what it's like to fly with Korean Air, Asiana Airlines and Qatar Airways from Washington, D.C. to Bangkok by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,036 reviews

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Korean Air
8.4
Very good
1,036 reviews
Korean Air
8.4
Very good
1,036 reviews

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Asiana Airlines
8.3
Very good
444 reviews
Korean Air
8.4
Very good
1,036 reviews

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Qatar Airways
7.4
Good
3,612 reviews
Korean Air
8.4
Very good
1,036 reviews

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

SAUDIA
7.4
Good
646 reviews
Korean Air
8.4
Very good
1,036 reviews

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

JetBlue
7.4
Good
3,068 reviews
Korean Air
8.4
Very good
1,036 reviews

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Bangkok. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Bangkok round-trip?

    Etihad Airways, at $945, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Bangkok.Alternate airlines to your destination round-trip include Air China and Turkish Airlines. Etihad Airways is priced at 28% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Bangkok one-way?

    For one-way options, check prices for Turkish Airlines. According to our data, you can fly for as low as $547. Users have also found prices from $548 and $560 on IndiGo and Air India, respectively.

  • Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to Bangkok?

    Most of the time, Washington, D.C. Dulles Intl Airport to Bangkok flights that have layovers will stop in Doha. Doha is followed by Istanbul in terms of the most popular layover location on flights from Washington, D.C. Dulles Intl Airport to Bangkok. Seoul ranks third in terms of the most popular layover location on Washington, D.C. Dulles Intl Airport to Bangkok flights.

  • What are some popular things to do or see while on a layover in Doha?

    Museum of Islamic Art, Katara Cultural Village, and Aspire Tower are currently the most popular points of interest in Doha at the moment. Those on a layover in Doha interested in visiting Museum of Islamic Art, Katara Cultural Village, or Aspire Tower can do so by traveling 5.2 mi, 8.7 mi, and 10.6 mi, respectively from Doha Hamad Intl. Those landing in Doha looking to spend some time exploring during their layover can rent a car for about $30 per day.

  • What are some popular points of interest to see during a layover in Istanbul?

    The majority of Istanbul visitors spend their time at Taksim Square, Sultan Ahmet Camii, and Beyazit Meydani. Taksim Square, Sultan Ahmet Camii, and Beyazit Meydani can be visited by traveling about 20.8 mi, 22.3 mi, and 21.7 mi respectively from Istanbul. Travelers can rent a car at Istanbul for an average daily rate of $29 to make sightseeing during their layover a little easier.

  • What are points of interest worth seeing during a layover in Seoul?

    Most Seoul visitors opt to spend their time at Namdaemun Market, Myeongdong Cathedral, and Dongdaemun Market. Namdaemun Market, Myeongdong Cathedral, and Dongdaemun Market are located about 29.8 mi, 30.4 mi, and 31.6 mi, respectively from Incheon Intl. Those landing in Seoul looking to spend some time exploring during their layover can rent a car for about $45 per day.

  • Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to Bangkok flights?

    Flights departing from Washington, D.C. Dulles Intl Airport and landing in Bangkok layover in Atlanta least frequently. Atlanta is followed by Abu Dhabi in terms of the least popular layover location on flights from Washington, D.C. Dulles Intl Airport to Bangkok. Tokyo sees the third fewest flights with layovers for the Washington, D.C. Dulles Intl Airport to Bangkok route.

  • Can I find deals for flights from Dulles Intl to Bangkok that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Bangkok flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Bangkok?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Bangkok.

  • Can I find deals for business class flights from Dulles Intl to Bangkok?

    Yes. Cheapflights offers flight deals from Dulles Intl to Bangkok by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Bangkok?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Bangkok (average of $976). Flying from Washington, D.C. Dulles Intl Airport to Bangkok in June is currently the most expensive (average of $1,580). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 10 airlines flying from Dulles Intl to Bangkok

Discover the top 10 airlines that operate flights from Dulles Intl to Bangkok. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Februar 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapest$683Average$826FlexibilityNo cancel feeOn-time86%
Air IndiaCheapest$700Average$827FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$920Average$1,105FlexibilityNo cancel feeOn-time77%
Etihad AirwaysCheapest$933Average$1,170FlexibilityNo cancel feeOn-time75%
Alaska AirlinesCheapest$936Average$1,261FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$952Average$1,297FlexibilityNo cancel feeOn-time68%
JetBlueCheapest$992Average$1,165FlexibilityNo cancel feeOn-time62%
Korean AirCheapest$1,068Average$1,423FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$1,076Average$1,511FlexibilityNo cancel feeOn-time71%
EmiratesCheapest$1,181Average$1,458FlexibilityNo cancel feeOn-time75%
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