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Cheap flights from Thailand to Washington, D.C. Reagan-National Airport from ฿18,436

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — DCA
20 Mar — 27 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to Reagan-National

Enter your travel dates to find the best prices.

Cheapest flights from Thailand to Reagan-National
Explore the most affordable flight options available from Thailand to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 February 2026.

Tue 5/501:35
BKK
-
DCA
2 stops29h 25m
Multiple Airlines
Wed 9/909:59
DCA
-
BKK
2 stops38h 21m
Multiple Airlines
Deal found 18/2฿30,685
Mon 18/501:35
BKK
-
DCA
2 stops29h 31m
Multiple Airlines
Tue 1/909:59
DCA
-
BKK
2 stops37h 51m
Multiple Airlines
Deal found 17/2฿30,717
Tue 5/501:35
BKK
-
DCA
2 stops29h 25m
Multiple Airlines
Tue 25/809:59
DCA
-
BKK
2 stops37h 51m
Multiple Airlines
Deal found 14/2฿30,998
Tue 3/302:15
BKK
-
DCA
2 stops29h 50m
EVA Air
Wed 6/509:59
DCA
-
BKK
2 stops37h 56m
EVA Air
Deal found 17/2฿31,279
Mon 27/415:10
BKK
-
DCA
2 stops37h 49m
Multiple Airlines
Thu 3/909:59
DCA
-
BKK
2 stops37h 51m
Multiple Airlines
Deal found 14/2฿31,310
Tue 5/516:45
BKK
-
DCA
2 stops38h 15m
EVA Air
Tue 18/809:59
DCA
-
BKK
2 stops37h 51m
EVA Air
Deal found 14/2฿31,592
Tue 3/317:15
BKK
-
DCA
2 stops38h 50m
Multiple Airlines
Wed 6/509:59
DCA
-
BKK
2 stops38h 11m
Multiple Airlines
Deal found 16/2฿31,748
Tue 1/911:35
CNX
-
DCA
2 stops43h 25m
Multiple Airlines
Tue 8/909:59
DCA
-
CNX
2 stops37h 26m
Multiple Airlines
Deal found 15/2฿31,779
Mon 27/416:45
BKK
-
DCA
2 stops36h 14m
EVA Air
Thu 3/909:59
DCA
-
BKK
2 stops37h 51m
EVA Air
Deal found 17/2฿31,873
Tue 31/316:45
BKK
-
DCA
2 stops35h 56m
Multiple Airlines
Tue 7/409:59
DCA
-
BKK
2 stops37h 26m
Multiple Airlines
Deal found 14/2฿32,279
Tue 3/317:15
BKK
-
DCA
2 stops38h 50m
Multiple Airlines
Tue 5/518:59
DCA
-
BKK
2 stops28h 26m
Multiple Airlines
Deal found 16/2฿32,373
Wed 15/415:20
BKK
-
DCA
2 stops39h 40m
Multiple Airlines
Wed 22/418:59
DCA
-
BKK
2 stops29h 11m
Multiple Airlines
Deal found 15/2฿32,435

Find flight deals from Thailand to Reagan-National

Keep the following information in mind while searching for Thailand to Reagan-National flight deals. Data was last updated 18 February 2026.

Round-trip from

฿30,685

One-way from

฿18,436

Popular in

August

Cheapest in

October

Average price

฿33,185
5/5-9/9
  • 5/5-9/9
  • 4 total stops
  • 67h 46m total
  • Thailand to Washington, D.C.
Search Deals
5/3
  • 5/3
  • 3 total stops
  • 59h 04m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (฿23,682 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿31,502 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Thailand to Reagan-National 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 17,341 searches. Data last updated 18 February 2026.
Use the filters below to find and compare flights from Thailand to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Thailand

Fly to

Reagan-National

Route

Depart

Return

Price

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 5/5

01:35-20:00

2 stops29h 25m

Washington, D.C. Reagan-National

Wed 9/9

09:59-11:20

2 stops38h 21m

฿30,685

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 3/3

02:15-20:05

2 stops29h 50m

Washington, D.C. Reagan-National

Wed 6/5

09:59-10:55

2 stops37h 56m

฿30,685

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 5/5

16:45-20:00

2 stops38h 15m

Washington, D.C. Reagan-National

Tue 18/8

09:59-10:50

2 stops37h 51m

฿31,592

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 31/3

16:45-17:41

2 stops35h 56m

Washington, D.C. Reagan-National

Tue 7/4

09:59-10:25

2 stops37h 26m

฿32,279

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 14/4

11:35-17:41

2 stops41h 06m

Washington, D.C. Reagan-National

Tue 21/4

09:59-10:25

2 stops37h 26m

฿32,435

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 5/5

15:45-11:40

3 stops30h 55m

Washington, D.C. Reagan-National

Wed 2/9

10:30-04:35

2 stops31h 05m

฿33,310

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 6/5

01:20-22:28

2 stops32h 08m

Washington, D.C. Reagan-National

Thu 10/9

11:00-23:20

2 stops25h 20m

฿33,342

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 6/5

01:20-22:28

2 stops32h 08m

Washington, D.C. Reagan-National

Wed 9/9

06:59-23:20

2 stops29h 21m

฿33,342

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 6/5

01:20-22:28

2 stops32h 08m

Washington, D.C. Reagan-National

Mon 7/9

06:59-23:20

2 stops29h 21m

฿33,342

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 4/5

07:45-21:55

2 stops25h 10m

Washington, D.C. Reagan-National

Wed 9/9

06:59-23:20

2 stops29h 21m

฿33,373

Flights are sorted by cheapest return flights first.

Deals found on 15/2

Showing 1-10 of 37 results
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Best time to book a flight from Thailand to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Thailand with our price prediction graph.
Estimated return 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 Thailand to Washington, D.C. Reagan-National Airport
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated 18 February 2026.
Get a feel of what it's like to fly with United Airlines from Thailand to Washington, D.C. Reagan-National Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,314 reviews
Check prices

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,314 reviews
United Airlines
7.4
Good
9,314 reviews
Check prices

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from Thailand to Reagan-National. 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 Thailand to Washington, D.C. Reagan-National Airport?

    EVA Air and United Airlines can get you from Thailand to Washington, D.C. Reagan-National Airport in just under 30h 55m. Your travel time can differ by up to 7h 20m. The distance between Thailand and Washington, D.C. Reagan-National Airport is about 14157 km. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Thailand to Reagan-National that include hotel bookings?

    Yes. In addition to deals on Thailand to Reagan-National flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Thailand to Reagan-National?

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

  • Can I find deals for business class flights from Thailand to Reagan-National?

    Yes. Cheapflights offers flight deals from Thailand to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Thailand to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.
Chiang Mai to Reagan-National flights
Chiang Mai to Baltimore flights
Chiang Mai to Dulles Intl flights

Top airline flying from Thailand to Reagan-National

Discover the top airline that operate flights from Thailand to Reagan-National. 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 17,341 searches. Data last updated 18 February 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest฿32,329Average฿33,140FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Thailand to Reagan-National?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Thailand to Reagan-National. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Thailand to Reagan-National?

Cheapflights helps you find that perfect flight to Reagan-National from Thailand by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Thailand to Reagan-National with no change fees?

Yes! Cheapflights helps users easily find flights from Thailand to Reagan-National with no change fees.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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