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$485+ Cheap flights from Dulles Intl (IAD) to Thailand

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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BKK
Jan 21 — Jan 281
Tue 1/21
Tue 1/28
1 adult, Economy
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Cheap flight deals from Dulles Intl to Thailand

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Thailand (TH0). 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 January 16, 2025.

Round-trip from

$991
(Trip.com)

One-way from

$485
(Kiwi.com)
From Washington, D.C. Dulles Intl to Thailand
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One-way flight from Washington, D.C. Dulles Intl to Thailand
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Find flight deals from Dulles Intl to Thailand

Cheapest flights from Dulles Intl to Thailand
Explore the most affordable flight options available from Dulles Intl to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

This Gotogate deal was found by Cheapflights users on 1/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/32:00 pmIAD - BKK
1 stop26h 40mTurkish Airlines
Wed 3/1910:50 pmBKK - IAD
1 stop25h 25mTurkish Airlines
Deal found 1/15$992
This Trip.com deal was found by Cheapflights users on 1/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/911:15 amIAD - BKK
1 stop23h 15mAir India
Fri 4/183:15 pmBKK - IAD
1 stop27h 00mAir India
Deal found 1/15$995
This Trip.com deal was found by Cheapflights users on 1/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/59:30 pmIAD - DMK
2 stops42h 40mMultiple Airlines
Sun 3/168:15 pmDMK - IAD
2 stops32h 10mMultiple Airlines
Deal found 1/15$1,002
This StudentUniverse deal was found by Cheapflights users on 1/15. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2710:30 pmIAD - BKK
1 stop38h 00mEtihad Airways
Sun 11/92:25 amBKK - IAD
1 stop25h 40mEtihad Airways
Deal found 1/15$1,008
This Priceline deal was found by Cheapflights users on 1/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1611:15 amIAD - BKK
1 stop39h 50mMultiple Airlines
Wed 9/246:30 pmBKK - IAD
2 stops56h 49mMultiple Airlines
Deal found 1/16$1,057
This CrystalTravel deal was found by Cheapflights users on 1/15. 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.
Sat 3/14:35 pmIAD - BKK
2 stops37h 30mAir China
Mon 3/317:35 pmBKK - IAD
1 stop31h 05mAir China
Deal found 1/15$1,092
This Gotogate deal was found by Cheapflights users on 1/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/128:40 pmIAD - BKK
2 stops27h 50mEthiopian Air
Tue 2/181:35 amBKK - IAD
2 stops29h 30mEthiopian Air
Deal found 1/15$1,140
This FlightHub deal was found by Cheapflights users on 1/16. 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.
Wed 3/199:05 pmIAD - HKT
2 stops25h 30mQatar Airways
Mon 3/2412:50 amHKT - IAD
1 stop27h 05mQatar Airways
Deal found 1/16$1,165
This KAYAK deal was found by Cheapflights users on 1/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2910:00 pmIAD - HKT
2 stops51h 10mMultiple Airlines
Thu 5/87:10 pmHKT - IAD
2 stops32h 25mMultiple Airlines
Deal found 1/16$1,169
This Gurufare deal was found by Cheapflights users on 1/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2610:30 pmIAD - HKT
1 stop21h 35mEtihad Airways
Thu 4/32:50 amHKT - IAD
1 stop24h 45mEtihad Airways
Deal found 1/16$1,173
This Booking.com deal was found by Cheapflights users on 1/15. 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.
Fri 1/241:30 pmIAD - HKT
2 stops45h 35mIndiGo
Tue 2/412:05 amHKT - IAD
2 stops31h 25mIndiGo
Deal found 1/15$1,194
This EVA Air deal was found by Cheapflights users on 1/16. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/266:22 pmIAD - CNX
2 stops29h 13mMultiple Airlines
Wed 4/2311:35 amCNX - IAD
2 stops31h 08mMultiple Airlines
Deal found 1/16$1,199

Find flights from Dulles Intl to Thailand within your budget

Customize your flight search to find flights from Dulles Intl to Thailand 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 January 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Sun 3/2

9:30 pm-4:10 am

2 stops42h 40m

Bangkok Don Mueang Intl

Mon 3/17

8:15 pm-5:25 pm

2 stops56h 10m

$991

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 2/25

2:00 pm-4:40 am

1 stop26h 40m

Bangkok Suvarnabhumi

Tue 4/15

11:00 am-10:50 am

1 stop34h 50m

$993

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 4/28

10:00 pm-11:55 pm

1 stop38h 55m

Bangkok Suvarnabhumi

Fri 5/9

9:15 am-4:35 pm

1 stop42h 20m

$1,009

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 4/13

11:15 am-9:30 pm

1 stop23h 15m

Bangkok Suvarnabhumi

Sun 4/20

10:30 pm-7:15 am

1 stop43h 45m

$1,016

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 3/2

9:30 pm-12:05 pm

2 stops26h 35m

Bangkok Suvarnabhumi

Sun 3/9

1:05 pm-4:25 pm

2 stops39h 20m

$1,050

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 3/4

4:35 pm-6:05 pm

2 stops37h 30m

Bangkok Suvarnabhumi

Mon 3/24

1:30 am-3:10 pm

1 stop24h 40m

$1,116

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 1/27

8:40 pm-12:30 pm

2 stops27h 50m

Bangkok Suvarnabhumi

Sun 2/9

1:35 am-7:05 pm

2 stops29h 30m

$1,148

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 3/13

9:05 pm-12:50 pm

1 stop28h 45m

Bangkok Suvarnabhumi

Tue 3/18

7:40 pm-4:55 pm

2 stops56h 15m

$1,152

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Wed 2/5

8:05 pm-6:55 pm

1 stop34h 50m

Phuket City

Wed 2/12

11:55 pm-8:20 am

1 stop44h 25m

$1,162

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Sat 2/1

2:00 pm-3:40 pm

1 stop37h 40m

Phuket City

Mon 2/10

10:25 pm-12:15 pm

1 stop25h 50m

$1,166

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

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Best time to book a flight from Dulles Intl to Thailand

Have a flexible travel schedule? Discover the best time to fly to Thailand 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 Thailand

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

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Thailand (average of $996). Flying from Washington, D.C. Dulles Intl Airport to Thailand in June is currently the most expensive (average of $1,585). 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 TH?

Find hourly flight availability from Dulles Intl to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 16, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Thailand, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Thailand by month

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

In terms of precipitation, rainfall in Thailand 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 Thailand when rainfall is around 0.4 in.

Temperature in Thailand by month

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

If weather is an important factor for your trip to Thailand, 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 Thailand

Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated January 16, 2025.
Get a feel of what it's like to fly with Turkish Airlines, Ethiopian Air and Air India from Washington, D.C. to Thailand by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,034 reviews
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA
8.4
Very good
847 reviews
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Asiana Airlines
8.3
Very good
465 reviews
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Emirates
8.1
Very good
3,350 reviews
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Singapore Airlines
8.1
Very good
1,327 reviews
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Thailand. 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 to fly from Washington, D.C. Dulles Intl Airport to Thailand one-way?

    One-way options have recently been found by users for as low as $552 on Qatar Airways. Other airlines that offer cheap prices include Turkish Airlines from $576 and Air India from $580 one-way.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Thailand?

    While some choose either Washington, D.C. Dulles Intl - Bangkok Don Mueang Intl or Washington, D.C. Dulles Intl - Phuket City, Washington, D.C. Dulles Intl - Bangkok Suvarnabhumi is the most popular route from Washington, D.C. Dulles Intl Airport to Thailand.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Thailand 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 Thailand?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Thailand (average of $996). Flying from Washington, D.C. Dulles Intl Airport to Thailand in June is currently the most expensive (average of $1,585). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dulles Intl to Thailand

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Haneda flights
Dulles Intl to Narita flights
Reagan-National to Haneda flights
Reagan-National to Narita flights
Dulles Intl to Incheon Intl flights
Dulles Intl to Suvarnabhumi flights
Baltimore to Haneda flights
Baltimore to Narita flights
Dulles Intl to New Delhi flights
Reagan-National to Suvarnabhumi flights
Dulles Intl to Hyderabad flights
Baltimore to Suvarnabhumi flights
Reagan-National to New Delhi flights
Dulles Intl to Ho Chi Minh City flights
Dulles Intl to Manila flights
Reagan-National to Hyderabad flights
Baltimore to Hyderabad flights
Reagan-National to Incheon Intl flights
Dulles Intl to Taiwan Taoyuan Intl flights
Dulles Intl to Bangalore flights
Dulles Intl to Mumbai flights
Dulles Intl to Hongqiao Intl flights
Baltimore to New Delhi flights
Dulles Intl to Gimpo Intl flights
Baltimore to Incheon Intl flights
Reagan-National to Bangalore flights
Reagan-National to Manila flights
Baltimore to Bangalore flights
Baltimore to Manila flights
Dulles Intl to Kathmandu flights
Reagan-National to Taiwan Taoyuan Intl flights
Dulles Intl to Lahore flights
Baltimore to Taiwan Taoyuan Intl flights
Reagan-National to Gimpo Intl flights
Reagan-National to Ho Chi Minh City flights
Dulles Intl to Chennai flights
Reagan-National to Hongqiao Intl flights
Reagan-National to Mumbai flights
Baltimore to Ho Chi Minh City flights
Dulles Intl to Sung Shan flights
Dulles Intl to Pu Dong flights
Reagan-National to Kathmandu flights
Baltimore to Kathmandu flights
Baltimore to Mumbai flights
Dulles Intl to Islamabad flights
Dulles Intl to Hong Kong flights
Dulles Intl to Denpasar flights
Dulles Intl to Capital flights
Dulles Intl to Dhaka flights
Baltimore to Hongqiao Intl flights

Top 10 airlines flying from Dulles Intl to Thailand

Discover the top 10 airlines that operate flights from Dulles Intl to Thailand. 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 January 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$674Average$795FlexibilityNo cancel feeOn-timeN/A
SAUDIACheapest$690Average$833FlexibilityNo cancel feeOn-time86%
DeltaCheapest$719Average$1,463FlexibilityNo cancel feeOn-timeN/A
Air ChinaCheapest$829Average$1,113FlexibilityNo cancel feeOn-time67%
ANACheapest$855Average$1,325FlexibilityNo cancel feeOn-time80%
Turkish AirlinesCheapest$921Average$1,127FlexibilityNo cancel feeOn-time77%
Etihad AirwaysCheapest$924Average$1,141FlexibilityNo cancel feeOn-time75%
Alaska AirlinesCheapest$936Average$1,219FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$951Average$1,413FlexibilityNo cancel feeOn-time68%
Korean AirCheapest$975Average$1,401FlexibilityNo cancel feeOn-time81%
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