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Cheap flights from Thailand to Washington, D.C. Reagan-National Airport from ฿20,592

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 24/1. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — DCA
13 Jan — 20 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to Reagan-National

Enter your travel dates to find the best prices.

Best flights from Thailand to Reagan-National
Discover carefully curated flight deals from Thailand to Reagan-National that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 December 2025.

Thu 29/117:15BKK - DCA
2 stops38h 45mMultiple Airlines
Wed 30/918:59DCA - BKK
2 stops29h 01mMultiple Airlines
Deal found 12/12฿31,109
Tue 27/108:15BKK - DCA
2 stops40h 04mแอร์แคนาดา
Wed 30/909:40DCA - BKK
2 stops25h 15mแอร์แคนาดา
Deal found 12/12฿32,746
Wed 22/411:35CNX - DCA
2 stops43h 26mEVA Air
Tue 28/408:00DCA - CNX
2 stops39h 25mEVA Air
Deal found 11/12฿33,250
Tue 27/107:10BKK - DCA
2 stops26h 56mUnited Airlines
Tue 3/215:30DCA - BKK
3 stops31h 55mUnited Airlines
Deal found 13/12฿33,345
Mon 16/223:15BKK - DCA
2 stops25h 25mเดลต้า
Sun 22/308:36DCA - BKK
2 stops29h 19mเดลต้า
Deal found 11/12฿39,737
Sat 31/122:05BKK - DCA
2 stops55h 03mJapan Airlines
Wed 30/906:30DCA - BKK
2 stops45h 40mJapan Airlines
Deal found 12/12฿42,067
Mon 26/102:15BKK - DCA
2 stops29h 45mMultiple Airlines
Tue 3/209:59DCA - BKK
2 stops38h 36mMultiple Airlines
Deal found 13/12฿31,770
Thu 22/108:00BKK - DCA
2 stops25h 58mแอร์แคนาดา
Wed 30/906:00DCA - BKK
2 stops30h 55mแอร์แคนาดา
Deal found 13/12฿33,282
Mon 26/117:15BKK - DCA
2 stops38h 45mMultiple Airlines
Mon 2/218:56DCA - BKK
2 stops40h 44mMultiple Airlines
Deal found 11/12฿32,967
Tue 13/109:10BKK - DCA
2 stops48h 42mUnited Airlines
Tue 20/115:30DCA - BKK
3 stops31h 55mUnited Airlines
Deal found 14/12฿36,840
Sun 25/108:15BKK - DCA
2 stops50h 20mแอร์แคนาดา
Wed 30/909:40DCA - BKK
2 stops25h 15mแอร์แคนาดา
Deal found 13/12฿33,597
Fri 30/108:00BKK - DCA
2 stops26h 35mแอร์แคนาดา
Wed 30/909:40DCA - BKK
2 stops25h 15mแอร์แคนาดา
Deal found 12/12฿33,912
Wed 14/107:10BKK - DCA
3 stops27h 27mUnited Airlines
Sat 14/210:30DCA - BKK
2 stops30h 40mUnited Airlines
Deal found 14/12฿38,949

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 14 December 2025.

Round-trip from

฿31,109

One-way from

฿20,592

Popular in

August

Cheapest in

October

Average price

฿37,375
29/1-30/9
  • 29/1-30/9
  • 4 total stops
  • 67h 46m total
  • Thailand to Washington, D.C.
Search Deals
แอร์แคนาดา
  • แอร์แคนาดา
  • 24/1
  • 2 total stops
  • 49h 43m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (฿37,659 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿29,723 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 14 December 2025.
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

Thu 29/1

17:15-20:00

2 stops38h 45m

Washington, D.C. Reagan-National

Wed 30/9

18:59-11:00

2 stops29h 01m

฿31,109

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 26/1

02:15-20:00

2 stops29h 45m

Washington, D.C. Reagan-National

Tue 3/2

09:59-12:35

2 stops38h 36m

฿31,770

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 27/1

08:15-12:19

2 stops40h 04m

Washington, D.C. Reagan-National

Wed 30/9

09:40-21:55

2 stops25h 15m

฿32,746

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 26/1

17:15-20:00

2 stops38h 45m

Washington, D.C. Reagan-National

Mon 2/2

18:56-23:40

2 stops40h 44m

฿32,967

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Wed 22/4

11:35-20:01

2 stops43h 26m

Washington, D.C. Reagan-National

Tue 28/4

08:00-10:25

2 stops39h 25m

฿33,250

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 22/1

08:00-21:58

2 stops25h 58m

Washington, D.C. Reagan-National

Wed 30/9

06:00-23:55

2 stops30h 55m

฿33,282

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 27/1

07:10-22:06

2 stops26h 56m

Washington, D.C. Reagan-National

Tue 3/2

15:30-11:25

3 stops31h 55m

฿33,345

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 25/1

08:15-22:35

2 stops50h 20m

Washington, D.C. Reagan-National

Wed 30/9

09:40-21:55

2 stops25h 15m

฿33,597

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 30/1

08:00-22:35

2 stops26h 35m

Washington, D.C. Reagan-National

Wed 30/9

09:40-21:55

2 stops25h 15m

฿33,912

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 13/1

09:10-21:52

2 stops48h 42m

Washington, D.C. Reagan-National

Tue 20/1

15:30-11:25

3 stops31h 55m

฿36,840

Flights are sorted by cheapest return flights first.

Deals found on 13/12

Showing 1-10 of 27 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

What is the cheapest time of day to fly from TH to DCA?

Find hourly flight availability from Thailand to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 December 2025.

It’s optimal to fly from Thailand to Washington, D.C. Reagan-National Airport at midday. By choosing this option you can save up to 85% on the cost of your flight, compared to a flight in the evening.

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 14 December 2025.
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
9,094 reviews
Check prices

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
United Airlines
7.4
Good
9,094 reviews
United Airlines
7.4
Good
9,094 reviews
Check prices

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

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?

    แอร์แคนาดา and EVA Air can get you from Thailand to Washington, D.C. Reagan-National Airport in just under 40h 04m. Your travel time can differ by up to 3h 22m. 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 Dulles Intl flights
Chiang Mai to Baltimore flights
Chiang Mai to Reagan-National 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 14 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest฿31,508Average฿32,674FlexibilityNo 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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