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Cheap flights from Thailand to Washington, D.C. Reagan-National Airport from ฿15,476

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 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — DCA
19 Nov — 26 Nov1
1 adult
1 adult, Economy

Find 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 20 October 2025.

Wed 29/1008:05BKK - DCA
2 stops24h 54mJapan Airlines
Sun 9/1116:59DCA - BKK
2 stops42h 36mJapan Airlines
Deal found 20/10฿31,964
Wed 12/1108:15BKK - DCA
2 stops26h 20mแอร์แคนาดา
Tue 13/116:10DCA - BKK
2 stops42h 20mแอร์แคนาดา
Deal found 20/10฿32,976
Wed 12/1108:15BKK - DCA
2 stops26h 20mแอร์แคนาดา
Mon 12/109:40DCA - BKK
2 stops24h 50mแอร์แคนาดา
Deal found 20/10฿33,172
Mon 10/1108:15BKK - DCA
2 stops38h 11mแอร์แคนาดา
Wed 14/106:00DCA - BKK
2 stops28h 30mแอร์แคนาดา
Deal found 20/10฿33,434
Mon 10/1112:45BKK - DCA
2 stops43h 15mMultiple Airlines
Wed 14/109:59DCA - BKK
2 stops37h 11mMultiple Airlines
Deal found 20/10฿33,532
Wed 12/1108:15BKK - DCA
2 stops26h 20mแอร์แคนาดา
Fri 16/106:00DCA - BKK
2 stops28h 30mแอร์แคนาดา
Deal found 20/10฿33,630
Mon 10/1108:15BKK - DCA
2 stops40h 04mแอร์แคนาดา
Mon 12/109:40DCA - BKK
2 stops24h 50mแอร์แคนาดา
Deal found 20/10฿33,662
Wed 12/1116:55BKK - DCA
3 stops31h 03mUnited Airlines
Mon 30/311:30DCA - BKK
3 stops35h 15mUnited Airlines
Deal found 19/10฿33,989
Mon 10/1108:15BKK - DCA
2 stops40h 04mแอร์แคนาดา
Sat 17/116:10DCA - BKK
2 stops42h 20mแอร์แคนาดา
Deal found 20/10฿34,054
Wed 3/1202:15BKK - DCA
2 stops29h 45mMultiple Airlines
Thu 11/1209:59DCA - BKK
2 stops49h 41mMultiple Airlines
Deal found 20/10฿34,250
Sun 9/1116:05BKK - DCA
2 stops39h 55mMultiple Airlines
Tue 13/109:59DCA - BKK
2 stops38h 36mMultiple Airlines
Deal found 20/10฿34,511
Tue 18/1108:15BKK - DCA
2 stops38h 11mแอร์แคนาดา
Sat 29/1111:05DCA - BKK
2 stops31h 25mแอร์แคนาดา
Deal found 20/10฿34,903

Cheap 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 20 October 2025.

Round-trip from

฿32,976

One-way from

฿15,476

Popular in

August

Cheapest in

July

Average price

฿35,001
แอร์แคนาดา
  • แอร์แคนาดา
  • 12/11-13/1
  • 4 total stops
  • 68h 40m total
  • Thailand to Washington, D.C.
Search Deals
16/11
  • 16/11
  • 3 total stops
  • 58h 04m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (฿58,943 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿30,648 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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 20 October 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

Tue 7/4

17:30-20:41

2 stops38h 11m

Washington, D.C. Reagan-National

Mon 20/4

17:30-12:10

2 stops31h 40m

฿33,140

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 10/11

08:15-12:19

2 stops40h 04m

Washington, D.C. Reagan-National

Sat 17/1

16:10-22:30

2 stops42h 20m

฿34,054

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 7/4

15:40-11:45

3 stops31h 05m

Washington, D.C. Reagan-National

Mon 20/4

18:00-09:45

2 stops28h 45m

฿34,282

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 12/11

07:10-22:09

2 stops26h 59m

Washington, D.C. Reagan-National

Mon 30/3

15:30-09:45

3 stops31h 15m

฿35,752

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 24/11

16:55-10:53

3 stops29h 58m

Washington, D.C. Reagan-National

Mon 8/12

06:00-00:20

2 stops30h 20m

฿36,111

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 18/12

08:00-10:26

2 stops38h 26m

Washington, D.C. Reagan-National

Tue 13/1

16:10-22:30

2 stops42h 20m

฿36,568

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 11/3

09:10-22:47

2 stops24h 37m

Washington, D.C. Reagan-National

Sun 15/3

12:00-11:25

3 stops36h 25m

฿37,613

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 11/11

02:15-20:00

2 stops29h 45m

Washington, D.C. Reagan-National

Sat 22/11

18:46-10:45

2 stops51h 59m

฿38,103

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 9/11

00:55-18:59

2 stops30h 04m

Washington, D.C. Reagan-National

Sat 17/1

18:25-00:45

2 stops42h 20m

฿39,768

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 13/11

23:15-16:35

2 stops29h 20m

Washington, D.C. Reagan-National

Tue 31/3

20:30-13:15

2 stops29h 45m

฿39,768

Flights are sorted by cheapest return flights first.

Deals found on 20/10

Showing 1-10 of 31 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 20 October 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 20 October 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
8,991 reviews
Check prices

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
8,991 reviews
United Airlines
7.4
Good
8,991 reviews
Check prices

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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?

    United Airlines, แอร์แคนาดา, and เดลต้า can get you from Thailand to Washington, D.C. Reagan-National Airport in just under 23h 44m. Your travel time can differ by up to 16h 20m. The distance between Thailand and Washington, D.C. Reagan-National Airport is about 13584 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 20 October 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest฿32,672Average฿33,881FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

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

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