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$492+ 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BKK
abr. 2 — abr. 91
mié. 4/2
mié. 4/9
1 adult, Economy
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Cheap flight deals from Dulles Intl to Thailand

Keep the following information in mind while searching for Dulles Intl to Thailand flight deals. Data was last updated marzo 28, 2025.

Round-trip from

$949
(Gotogate)

One-way from

$492
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$1,117
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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Highest demand for flights based on searches. 8% potential increase in price ($118 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 March 2025
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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 marzo 28, 2025.

This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/295:35 pmIAD - HKT
1 stop37h 10mAir China
vie. 4/47:25 pmHKT - IAD
1 stop35h 05mAir China
Deal found 3/27$606
This Gotogate deal was found by Cheapflights users on 3/28. 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.
lun. 5/510:05 pmIAD - HKT
2 stops33h 25mEtihad Airways
mié. 5/212:45 pmHKT - IAD
2 stops36h 25mEtihad Airways
Deal found 3/28$970
This Gurufare deal was found by Cheapflights users on 3/27. 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.
dom. 10/1210:05 pmIAD - BKK
1 stop22h 05mEtihad Airways
mié. 10/228:55 pmBKK - IAD
1 stop30h 15mEtihad Airways
Deal found 3/27$996
This oojo deal was found by Cheapflights users on 3/27. 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.
mar. 4/2211:00 amIAD - BKK
1 stop40h 15mAir India
lun. 5/53:15 pmBKK - IAD
1 stop27h 25mAir India
Deal found 3/27$997
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/311:00 amIAD - BKK
1 stop29h 00mMultiple Airlines
jue. 5/81:15 amBKK - IAD
2 stops49h 45mMultiple Airlines
Deal found 3/27$1,002
This oojo deal was found by Cheapflights users on 3/27. 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.
lun. 9/11:30 pmIAD - HKT
1 stop38h 50mTurkish Airlines
vie. 9/1210:15 pmHKT - IAD
1 stop24h 30mTurkish Airlines
Deal found 3/27$1,006
This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/2511:00 amIAD - DMK
2 stops29h 50mMultiple Airlines
mié. 5/74:45 pmDMK - IAD
2 stops34h 00mMultiple Airlines
Deal found 3/27$1,023
This Justfly.com deal was found by Cheapflights users on 3/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/38:07 pmIAD - BKK
2 stops49h 28mSingapore Airlines
mié. 9/2412:15 pmBKK - IAD
2 stops38h 44mSingapore Airlines
Deal found 3/27$1,027
This oojo deal was found by Cheapflights users on 3/26. 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.
mié. 10/19:40 pmIAD - BKK
1 stop30h 45mTurkish Airlines
mié. 10/86:45 amBKK - IAD
1 stop24h 00mTurkish Airlines
Deal found 3/26$1,034
This oojo deal was found by Cheapflights users on 3/27. 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.
mar. 5/69:00 pmIAD - HKT
1 stop23h 50mQatar Airways
lun. 5/128:30 pmHKT - IAD
1 stop23h 10mQatar Airways
Deal found 3/27$1,068
This Trip.com deal was found by Cheapflights users on 3/27. 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.
vie. 5/236:50 pmIAD - BKK
1 stop31h 55mSAUDIA
dom. 6/83:25 pmBKK - IAD
1 stop35h 20mSAUDIA
Deal found 3/27$1,081
This oojo deal was found by Cheapflights users on 3/26. 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.
mar. 9/911:00 amIAD - HKT
1 stop34h 20mAir India
mar. 9/169:25 amHKT - IAD
1 stop33h 15mAir India
Deal found 3/26$1,085

Cheapflights Fare Finder

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 marzo 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Thailand that are best for you.

Fly from

Dulles Intl

Fly to

Thailand

Route

Depart

Return

Price

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

lun. 5/5

10:05 pm-6:30 pm

2 stops33h 25m

Phuket City

mié. 5/21

2:45 pm-4:10 pm

2 stops36h 25m

$970

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

mar. 4/22

11:00 am-2:15 pm

1 stop40h 15m

Bangkok Suvarnabhumi

lun. 5/5

3:15 pm-7:40 am

1 stop27h 25m

$997

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

mié. 5/7

10:05 pm-7:10 am

1 stop22h 05m

Bangkok Suvarnabhumi

mié. 6/4

2:55 am-4:10 pm

1 stop24h 15m

$998

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

sáb. 5/3

11:00 am-3:00 am

1 stop29h 00m

Bangkok Suvarnabhumi

jue. 5/8

1:15 am-4:00 pm

2 stops49h 45m

$1,002

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

lun. 9/1

1:30 pm-3:20 pm

1 stop38h 50m

Phuket City

vie. 9/12

10:15 pm-11:45 am

1 stop24h 30m

$1,006

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

vie. 4/25

11:00 am-3:50 am

2 stops29h 50m

Bangkok Don Mueang Intl

mié. 5/7

4:45 pm-3:45 pm

2 stops34h 00m

$1,023

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

lun. 4/28

5:38 pm-11:00 am

2 stops30h 22m

Bangkok Suvarnabhumi

vie. 5/9

3:30 pm-4:00 pm

2 stops35h 30m

$1,039

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

dom. 5/11

1:30 pm-5:15 am

1 stop28h 45m

Bangkok Suvarnabhumi

vie. 6/6

10:45 pm-7:45 pm

1 stop32h 00m

$1,053

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

mar. 5/6

9:00 pm-7:50 am

1 stop23h 50m

Phuket City

lun. 5/12

8:30 pm-8:40 am

1 stop23h 10m

$1,068

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

vie. 5/23

6:50 pm-1:45 pm

1 stop31h 55m

Bangkok Suvarnabhumi

dom. 6/8

3:25 pm-3:45 pm

1 stop35h 20m

$1,081

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 59 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Thailand

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Thailand (average of $963). Flying from Washington, D.C. Dulles Intl Airport to Thailand in December is currently the most expensive (average of $1,574). 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 marzo 28, 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 marzo 28, 2025.
Get a feel of what it's like to fly with Korean Air, Asiana Airlines and Singapore Airlines 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
8.4
Very good
1,050 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,050 reviews
Korean Air
8.4
Very good
1,050 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very good
440 reviews
Korean Air
8.4
Very good
1,050 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very good
1,285 reviews
Korean Air
8.4
Very good
1,050 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Emirates
8.0
Very good
3,190 reviews
Korean Air
8.4
Very good
1,050 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,897 reviews
Korean Air
8.4
Very good
1,050 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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 $492 on Air China. Other airlines that offer cheap prices include Air India from $558 and Turkish Airlines from $564 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 - Phuket City or Washington, D.C. Dulles Intl - Bangkok Don Mueang Intl, 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, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Thailand (average of $963). Flying from Washington, D.C. Dulles Intl Airport to Thailand in December is currently the most expensive (average of $1,574). 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.

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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
Baltimore to Narita flights
Baltimore to Haneda flights
Dulles Intl to Suvarnabhumi flights
Dulles Intl to Hyderabad flights
Reagan-National to Hyderabad flights
Baltimore to Hyderabad flights
Dulles Intl to Manila flights
Reagan-National to Suvarnabhumi flights
Dulles Intl to Bangalore flights
Baltimore to Suvarnabhumi flights
Reagan-National to Incheon Intl flights
Dulles Intl to Taiwan Taoyuan Intl flights
Dulles Intl to Ho Chi Minh City flights
Baltimore to Incheon Intl flights
Baltimore to Bangalore flights
Reagan-National to Bangalore flights
Reagan-National to Manila flights
Dulles Intl to New Delhi flights
Dulles Intl to Gimpo Intl flights
Dulles Intl to Hongqiao Intl flights
Reagan-National to New Delhi flights
Dulles Intl to Mumbai flights
Baltimore to Manila flights
Dulles Intl to Capital flights
Reagan-National to Taiwan Taoyuan Intl flights
Dulles Intl to Denpasar flights
Baltimore to Taiwan Taoyuan Intl flights
Reagan-National to Denpasar flights
Baltimore to Denpasar flights
Baltimore to Mumbai flights
Reagan-National to Gimpo Intl flights
Baltimore to New Delhi flights
Reagan-National to Mumbai flights
Reagan-National to Hongqiao Intl flights
Dulles Intl to Chennai flights
Reagan-National to Capital flights
Baltimore to Ho Chi Minh City flights
Dulles Intl to Sung Shan flights
Reagan-National to Ho Chi Minh City flights
Dulles Intl to Lahore flights
Dulles Intl to Islamabad flights
Dulles Intl to Pu Dong flights
Baltimore to Capital flights
Reagan-National to Chennai flights
Baltimore to Chennai 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 marzo 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapest$652Average$857FlexibilityNo cancel feeOn-time86%
Air IndiaCheapest$700Average$834FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$921Average$1,127FlexibilityNo cancel feeOn-time77%
Etihad AirwaysCheapest$933Average$1,144FlexibilityNo cancel feeOn-time75%
Alaska AirlinesCheapest$936Average$1,236FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$952Average$1,406FlexibilityNo cancel feeOn-time68%
JetBlueCheapest$996Average$1,189FlexibilityNo cancel feeOn-time62%
Korean AirCheapest$1,063Average$1,551FlexibilityNo cancel feeOn-time81%
IndiGoCheapest$1,069Average$1,388FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$1,076Average$1,453FlexibilityNo cancel feeOn-time71%
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