Find flights
When to book
Airlines
FAQs

Cheap flights from Thailand to Washington, D.C. Reagan-National Airport from ฿21,074

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — DCA
30 Jan — 6 Feb1
1 adult

Cheap flight deals from Thailand to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Thailand (TH0) to Reagan-National (DCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 25 January 2025.

Round-trip from

฿34,640

One-way from

฿21,074
United Airlines
  • United Airlines
  • 20/2-27/2
  • 4 total stops
  • 53h 54m total
  • Thailand to Washington, D.C.
Search Deals
เดลต้า
  • เดลต้า
  • 16/3
  • 2 total stops
  • 30h 18m total
  • Thailand to Washington, D.C.
Search Deals

Find flight deals from Thailand to Reagan-National

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 25 January 2025.

Thu 20/207:10BKK - DCA
2 stops26h 49mUnited Airlines
Thu 27/209:00DCA - BKK
2 stops27h 05mUnited Airlines
Deal found 24/1฿34,640
Sun 16/301:00BKK - DCA
2 stops26h 48mเดลต้า
Tue 25/306:00DCA - BKK
2 stops28h 30mเดลต้า
Deal found 24/1฿37,334
Thu 13/209:55BKK - DCA
2 stops24h 40mJapan Airlines
Sat 1/307:45DCA - BKK
2 stops27h 50mJapan Airlines
Deal found 23/1฿41,104
Thu 20/202:15BKK - DCA
2 stops30h 44mMultiple Airlines
Sat 1/317:15DCA - BKK
2 stops29h 55mMultiple Airlines
Deal found 24/1฿41,642
Tue 3/623:15CNX - DCA
2 stops34h 36mเดลต้า
Mon 28/720:15DCA - CNX
2 stops38h 40mเดลต้า
Deal found 24/1฿43,831
Sat 1/207:50BKK - DCA
2 stops26h 49mFinnair
Sun 3/817:30DCA - BKK
2 stops49h 00mFinnair
Deal found 24/1฿48,039
Thu 5/623:15CNX - DCA
2 stops33h 04mKorean Air
Thu 31/720:30DCA - CNX
2 stops38h 25mKorean Air
Deal found 24/1฿52,550
Wed 12/203:00BKK - DCA
2 stops28h 15mQatar Airways
Sat 1/306:32DCA - BKK
2 stops24h 53mQatar Airways
Deal found 23/1฿54,603
Sat 1/301:00BKK - DCA
2 stops25h 50mKorean Air
Sun 9/306:30DCA - BKK
2 stops29h 50mKorean Air
Deal found 25/1฿54,973
Thu 5/600:45CNX - DCA
2 stops50h 04mMultiple Airlines
Tue 29/709:40DCA - CNX
2 stops27h 00mMultiple Airlines
Deal found 25/1฿58,912
Fri 21/219:15BKK - DCA
2 stops26h 13mCathay Pacific
Sat 1/309:05DCA - BKK
2 stops27h 05mCathay Pacific
Deal found 24/1฿63,928
Sun 2/321:10BKK - DCA
3 stops35h 49mSingapore Airlines
Sun 9/309:00DCA - BKK
2 stops36h 30mSingapore Airlines
Deal found 25/1฿81,400

Find flights from Thailand to Reagan-National within your budget

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 25 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 20/2

07:10-21:59

2 stops26h 49m

Washington, D.C. Reagan-National

Thu 27/2

09:00-00:05

2 stops27h 05m

฿34,640

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 16/3

01:00-16:48

2 stops26h 48m

Washington, D.C. Reagan-National

Tue 25/3

06:00-21:30

2 stops28h 30m

฿37,334

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 13/2

09:55-22:35

2 stops24h 40m

Washington, D.C. Reagan-National

Sat 1/3

07:45-23:35

2 stops27h 50m

฿41,104

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 20/2

02:15-20:59

2 stops30h 44m

Washington, D.C. Reagan-National

Sat 1/3

17:15-11:10

2 stops29h 55m

฿41,642

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 3/6

23:15-22:51

2 stops34h 36m

Washington, D.C. Reagan-National

Mon 28/7

20:15-21:55

2 stops38h 40m

฿43,831

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Thu 5/6

23:15-21:19

2 stops33h 04m

Washington, D.C. Reagan-National

Thu 31/7

20:30-21:55

2 stops38h 25m

฿52,550

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 12/2

03:00-19:15

2 stops28h 15m

Washington, D.C. Reagan-National

Sat 1/3

06:32-19:25

2 stops24h 53m

฿54,603

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sat 1/3

01:00-14:50

2 stops25h 50m

Washington, D.C. Reagan-National

Sun 9/3

06:30-23:20

2 stops29h 50m

฿54,973

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Thu 5/6

00:45-15:49

2 stops50h 04m

Washington, D.C. Reagan-National

Tue 29/7

09:40-23:40

2 stops27h 00m

฿58,912

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 21/2

19:15-09:28

2 stops26h 13m

Washington, D.C. Reagan-National

Sat 1/3

09:05-00:10

2 stops27h 05m

฿63,928

Flights are sorted by cheapest return flights first.

Deals found on 24/1

Showing 1-10 of 26 results
1
2
3

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.

Travel insights for flights from Thailand to Reagan-National

Get recent, data-driven insights about flights from Thailand to Reagan-National including ideal travel times, pricing trends, and more.

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 25 January 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Thailand to Washington, D.C. Reagan-National Airport as you normally would.

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 66.0 mm.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 25 January 2025.
See what other customers who have flown with เดลต้า, Finnair and United Airlines from Thailand to Washington, D.C. have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very Good
1,037 reviews
Check prices

Crew

8.8

Food

8.1

Comfort

8.3

Overall

8.5

Boarding

8.5

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very Good
1,037 reviews
Korean Air
8.5
Very Good
1,037 reviews
Check prices

Crew

8.8

Food

8.1

Comfort

8.3

Overall

8.5

Boarding

8.5

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA
8.4
Very Good
847 reviews
Korean Air
8.5
Very Good
1,037 reviews
Check prices

Crew

8.8

Food

8.1

Comfort

8.3

Overall

8.5

Boarding

8.5

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very Good
1,445 reviews
Korean Air
8.5
Very Good
1,037 reviews
Check prices

Crew

8.8

Food

8.1

Comfort

8.3

Overall

8.5

Boarding

8.5

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Emirates
8.1
Very Good
3,343 reviews
Korean Air
8.5
Very Good
1,037 reviews
Check prices

Crew

8.8

Food

8.1

Comfort

8.3

Overall

8.5

Boarding

8.5

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Singapore Airlines
8.1
Very Good
1,327 reviews
Korean Air
8.5
Very Good
1,037 reviews
Check prices

Crew

8.8

Food

8.1

Comfort

8.3

Overall

8.5

Boarding

8.5

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

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.

  • What are the cheapest airlines to fly from Thailand to Washington, D.C. Reagan-National Airport one-way?

    The cheapet airlines for a one-way flight from Thailand to Washington, D.C. Reagan-National Airport are เดลต้า (฿21,074), แอร์แคนาดา (฿25,181), and Philippine Airlines (฿25,282).

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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