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$409+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BKK
avr. 1 — avr. 81
mer. 4/1
mer. 4/8
1 adult, Economy
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Cheap 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 mars 2, 2026.

This KAYAK deal was found by Cheapflights users on 3/1. 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.
lun. 3/93:35 pm
IAD
-
BKK
1 stop20h 50m
Etihad Airways
mer. 3/185:40 pm
BKK
-
IAD
2 stops51h 25m
Etihad Airways
Deal found 3/1$851
This Gotogate deal was found by Cheapflights users on 2/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/103:35 pm
IAD
-
BKK
1 stop39h 25m
Etihad Airways
mer. 3/185:40 pm
BKK
-
IAD
2 stops51h 25m
Etihad Airways
Deal found 2/26$852
This CrystalTravel deal was found by Cheapflights users on 2/26. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 11/122:35 pm
IAD
-
BKK
1 stop28h 35m
Etihad Airways
sam. 11/212:40 pm
BKK
-
IAD
1 stop30h 25m
Etihad Airways
Deal found 2/26$853
This CrystalTravel deal was found by Cheapflights users on 2/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/113:10 pm
IAD
-
BKK
1 stop21h 40m
Etihad Airways
ven. 9/253:05 pm
BKK
-
IAD
1 stop29h 40m
Etihad Airways
Deal found 2/28$854
This iWofly deal was found by Cheapflights users on 2/26. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 4/193:10 pm
IAD
-
BKK
1 stop28h 35m
Etihad Airways
sam. 5/99:15 am
BKK
-
IAD
1 stop35h 30m
Etihad Airways
Deal found 2/26$855
This Kiwi.com deal was found by Cheapflights users on 2/27. 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.
lun. 3/93:35 pm
IAD
-
BKK
1 stop20h 50m
Etihad Airways
ven. 3/202:40 pm
BKK
-
IAD
1 stop30h 25m
Etihad Airways
Deal found 2/27$856
This AIR PREMIA deal was found by Cheapflights users on 2/27. 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 AIR PREMIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/81:20 pm
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
jeu. 5/1410:45 pm
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Deal found 2/27$857
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/63:10 pm
IAD
-
BKK
1 stop40h 00m
Etihad Airways
lun. 4/279:15 am
BKK
-
IAD
1 stop35h 30m
Etihad Airways
Deal found 2/26$858
This Etihad Airways deal was found by Cheapflights users on 2/27. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 4/253:10 pm
IAD
-
BKK
1 stop21h 40m
Etihad Airways
lun. 5/259:45 am
BKK
-
IAD
1 stop35h 00m
Etihad Airways
Deal found 2/27$859
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 8/233:10 pm
IAD
-
BKK
1 stop21h 40m
Etihad Airways
ven. 9/113:05 pm
BKK
-
IAD
1 stop29h 40m
Etihad Airways
Deal found 2/28$860
This Kiwi.com deal was found by Cheapflights users on 3/1. 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.
mar. 3/103:35 pm
IAD
-
BKK
1 stop20h 50m
Etihad Airways
ven. 3/202:40 pm
BKK
-
IAD
1 stop30h 25m
Etihad Airways
Deal found 3/1$861
This FlightHub deal was found by Cheapflights users on 2/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 11/52:30 pm
IAD
-
BKK
1 stop33h 10m
Turkish Airlines
ven. 11/2010:10 am
BKK
-
IAD
1 stop45h 05m
Turkish Airlines
Deal found 2/26$862

Find 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 mars 2, 2026.

Round-trip from

$851
(Etihad Airways)

One-way from

$409
(Gurufare)

Popular in

December

Cheapest in

September

Average price

$1,148
From Washington, D.C. Dulles Intl to Thailand
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Thailand
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in March 2026
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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 mars 2, 2026.
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

Fly to

Route

Depart

Return

Price

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

jeu. 4/30

6:10 am-10:00 am

2 stops40h 50m

Bangkok Suvarnabhumi

dim. 5/10

7:35 am-5:40 am

2 stops33h 05m

$1,049

Washington, D.C.Trat

IAD - TDX

IADTDX

Washington, D.C. Dulles Intl

lun. 4/13

3:10 pm-9:15 am

2 stops31h 05m

Trat

lun. 4/20

9:45 am-9:45 am

2 stops59h 00m

$1,068

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

jeu. 4/9

2:36 pm-9:35 am

2 stops31h 59m

Bangkok Suvarnabhumi

jeu. 5/7

7:00 am-9:11 pm

2 stops25h 11m

$1,097

Washington, D.C.Trat

IAD - TDX

IADTDX

Washington, D.C. Dulles Intl

lun. 4/13

3:10 pm-9:15 am

2 stops31h 05m

Trat

lun. 4/20

9:45 am-9:45 am

2 stops35h 00m

$1,101

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

dim. 4/5

10:05 pm-9:35 am

2 stops48h 30m

Bangkok Suvarnabhumi

mar. 4/14

3:45 pm-5:25 am

2 stops24h 40m

$1,108

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

mer. 3/18

3:35 pm-4:25 am

2 stops25h 50m

Bangkok Don Mueang Intl

mer. 4/22

11:40 pm-4:05 pm

2 stops27h 25m

$1,110

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

sam. 5/9

1:20 pm-8:35 am

2 stops32h 15m

Ko Samui

dim. 5/17

6:00 am-11:35 am

2 stops40h 35m

$1,136

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

ven. 3/13

3:35 pm-11:20 am

2 stops32h 45m

Chiang Mai

sam. 3/28

8:50 am-9:45 am

1 stop35h 55m

$1,146

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

lun. 4/6

9:00 pm-7:45 am

1 stop23h 45m

Phuket City

mer. 4/29

9:20 am-8:40 am

1 stop34h 20m

$1,176

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

mar. 4/7

3:10 pm-4:30 am

2 stops26h 20m

Bangkok Don Mueang Intl

mar. 4/21

3:15 pm-4:05 pm

2 stops35h 50m

$1,191

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 60 resultsSorted by cheapest first
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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, June is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Thailand (average of $616). Flying from Washington, D.C. Dulles Intl Airport to Thailand in December is currently the most expensive (average of $914). 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 mars 2, 2026.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Thailand in the morning. If you’re flexible enough to do this you can expect to save up to 10% on your trip compared to booking a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Thailand. Price data was last updated on March 30, 2025.

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

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 mars 2, 2026.
Peruse reviews from past customers who have flown with ANA, Qatar Airways, and United Airlines from Washington, D.C. Dulles Intl Airport to Thailand to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
1,107 reviews

Comfort

8.2

Entertainment

7.9

Overall

8.4

Boarding

8.5

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
ANA
8.4
Very good
1,107 reviews
ANA
8.4
Very good
1,107 reviews

Comfort

8.2

Entertainment

7.9

Overall

8.4

Boarding

8.5

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
Qatar Airways
7.4
Good
3,745 reviews
ANA
8.4
Very good
1,107 reviews

Comfort

8.2

Entertainment

7.9

Overall

8.4

Boarding

8.5

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
United Airlines
7.4
Good
9,375 reviews
ANA
8.4
Very good
1,107 reviews

Comfort

8.2

Entertainment

7.9

Overall

8.4

Boarding

8.5

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
Etihad Airways
7.3
Good
1,420 reviews
ANA
8.4
Very good
1,107 reviews

Comfort

8.2

Entertainment

7.9

Overall

8.4

Boarding

8.5

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
Turkish Airlines
7.3
Good
4,240 reviews
ANA
8.4
Very good
1,107 reviews

Comfort

8.2

Entertainment

7.9

Overall

8.4

Boarding

8.5

Crew

8.7

Food

7.7

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!

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.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Thailand?

    For as low as $1,176, Etihad Airways can have you in Thailand from Washington, D.C. Dulles Intl Airport in 23h 45m. Airlines will cover a distance of 9167 mi. This flight may include one or multiple stops.

  • 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 $394 on IndiGo. Other airlines that offer cheap prices include Korean Air from $394 and Etihad Airways from $401 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, June is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Thailand (average of $616). Flying from Washington, D.C. Dulles Intl Airport to Thailand in December is currently the most expensive (average of $914). 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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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 mars 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$565Average$783FlexibilityNo cancel feeOn-time67%
IndiGoCheapest$639Average$1,172FlexibilityNo cancel feeOn-time80%
DeltaCheapest$664Average$1,135FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$673Average$1,205FlexibilityNo cancel feeOn-time81%
AIR PREMIACheapest$782Average$879FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$787Average$1,114FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$824Average$1,143FlexibilityNo cancel feeOn-time68%
Turkish AirlinesCheapest$835Average$1,154FlexibilityNo cancel feeOn-time77%
ANACheapest$896Average$1,005FlexibilityNo cancel feeOn-time80%
JetBlueCheapest$900Average$2,043FlexibilityNo cancel feeOn-time62%

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