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฿15,019+ Cheap flights to Washington, D.C.

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
15 Jul — 22 Jul1
1 adult

Flights to Washington, D.C. in 2025

Find the latest flights to Washington, D.C. in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 10 July 2025.

Return from

฿26,773

One-way from

฿15,019

Popular in

August

Cheapest in

January

Average price

฿37,156
23/8-30/8
  • 23/8-30/8
  • 4 total stops
  • 91h 29m total
  • Bangkok to Washington, D.C.
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25/8
  • 25/8
  • 2 total stops
  • 47h 49m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (฿108,974 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿41,087 potential savings vs. average return price).
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Average for return flights in July 2025
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Find flight deals to Washington, D.C.

Cheapest flights to Washington, D.C.
Explore the most affordable flight options available to Washington, D.C.. Find the lowest fares based on data from user searches, with prices last updated on 10 July 2025.

Sat 23/823:20BKK - BWI
2 stops42h 34mMultiple Airlines
Sat 30/805:45BWI - BKK
2 stops48h 55mMultiple Airlines
Deal found 9/7฿26,773
Fri 3/1015:25BKK - IAD
1 stop35h 20mซาอุเดียแอร์ไลน์
Sat 18/1018:50IAD - BKK
1 stop42h 20mซาอุเดียแอร์ไลน์
Deal found 9/7฿32,128
Fri 22/822:05BKK - DCA
2 stops28h 54mJapan Airlines
Fri 29/822:09DCA - BKK
2 stops30h 01mJapan Airlines
Deal found 8/7฿32,259
Sun 13/723:30BKK - IAD
1 stop22h 45mKorean Air
Wed 23/713:30IAD - BKK
1 stop24h 35mKorean Air
Deal found 8/7฿32,422
Fri 12/909:50BKK - IAD
2 stops25h 23mเดลต้า
Sun 16/1106:15IAD - BKK
2 stops30h 30mเดลต้า
Deal found 7/7฿33,271
Wed 17/1209:25BKK - IAD
1 stop35h 45mUnited Airlines
Sun 4/108:35IAD - BKK
2 stops32h 35mUnited Airlines
Deal found 9/7฿33,369
Fri 10/1009:35BKK - DCA
3 stops41h 24mUnited Airlines
Tue 14/1006:25DCA - BKK
2 stops35h 10mUnited Airlines
Deal found 7/7฿33,663
Sun 24/823:40BKK - IAD
2 stops47h 05mIndiGo
Sun 31/813:30IAD - BKK
2 stops46h 10mIndiGo
Deal found 9/7฿34,413
Fri 3/1013:55BKK - IAD
1 stop31h 10mANA
Sat 18/1013:20IAD - BKK
2 stops28h 15mANA
Deal found 9/7฿34,642
Tue 18/1122:50BKK - IAD
2 stops24h 59mMultiple Airlines
Sat 29/1108:45IAD - BKK
2 stops27h 20mMultiple Airlines
Deal found 10/7฿35,066
Sun 24/821:40BKK - DCA
2 stops29h 53mเดลต้า
Sun 31/806:59DCA - BKK
2 stops27h 46mเดลต้า
Deal found 9/7฿35,556
Fri 3/1008:55BKK - IAD
1 stop41h 45mQatar Airways
Sat 18/1021:00IAD - BKK
1 stop29h 25mQatar Airways
Deal found 8/7฿36,862

Cheapflights Fare Finder

Locate flights to Washington, D.C. that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 10 July 2025.
Use the filters below to find and compare flights to Washington, D.C. that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Sat 23/8

23:20-06:54

2 stops42h 34m

Baltimore/Washington

Sat 30/8

05:45-17:40

2 stops48h 55m

฿26,773

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 3/10

15:25-15:45

1 stop35h 20m

Washington, D.C. Dulles Intl

Sat 18/10

18:50-00:10

1 stop42h 20m

฿32,128

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 22/8

22:05-15:59

2 stops28h 54m

Washington, D.C. Reagan-National

Fri 29/8

22:09-15:10

2 stops30h 01m

฿32,259

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 11/9

09:50-10:55

1 stop36h 05m

Washington, D.C. Dulles Intl

Wed 12/11

11:50-00:45

1 stop24h 55m

฿33,205

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 12/9

09:50-23:33

2 stops24h 43m

Washington, D.C. Dulles Intl

Sat 15/11

17:25-21:30

2 stops40h 05m

฿33,271

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 17/12

09:25-09:10

1 stop35h 45m

Washington, D.C. Dulles Intl

Sun 4/1

08:35-05:10

2 stops32h 35m

฿33,369

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 10/10

09:35-15:59

3 stops41h 24m

Washington, D.C. Reagan-National

Tue 14/10

06:25-04:35

2 stops35h 10m

฿33,663

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 24/8

23:40-11:45

2 stops47h 05m

Washington, D.C. Dulles Intl

Sun 31/8

13:30-22:40

2 stops46h 10m

฿34,413

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 3/10

13:55-10:05

1 stop31h 10m

Washington, D.C. Dulles Intl

Sat 18/10

13:20-04:35

2 stops28h 15m

฿34,642

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 18/11

22:50-11:49

2 stops24h 59m

Washington, D.C. Dulles Intl

Sat 29/11

08:45-00:05

2 stops27h 20m

฿35,066

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 40 results
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Best time to book a flight to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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 to Washington, D.C.

When is the best time to book a flight to Washington, D.C.?

Use this chart to determine the optimal time to book a return flight from Bangkok to Washington, D.C.. Price data was last updated on 27 June 2025.

The best time to book flights to Washington, D.C. is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

How long is the flight to Washington, D.C.?

On average, a flight from Bangkok to Washington, D.C. takes 29 hours 31 minutes. Flights to Washington, D.C. from other popular cities in Thailand will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Washington, D.C.?

The most popular airlines flying from Bangkok to Washington, D.C. are United Airlines, ANA and Qatar Airways.

United Airlines
United Airlines
From ฿971
ANA
ANA
From ฿1,056
Qatar Airways
Qatar Airways
From ฿1,238
Emirates
Emirates
From ฿1,307

What are the cheapest airlines that fly to Washington, D.C.?

The cheapest airlines flying from Bangkok to Washington, D.C. are ซาอุเดียแอร์ไลน์, United Airlines and Korean Air.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 mm 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. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., 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 Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 10 July 2025.
Read reviews from past customers who have flown EVA Air, Korean Air, andANA to the United States. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,215 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very Good
1,105 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.4
Very Good
898 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very Good
1,512 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very Good
744 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

FAQs about flying to Washington, D.C.

  • Can I find cheaper flights to Washington, D.C. if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Washington, D.C. on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Washington, D.C.?

    Based on reviews from Cheapflights users, ซาอุเดียแอร์ไลน์ is rated the highest out of the airlines that fly to Washington, D.C..

  • What is the cheapest airport to fly to in Washington, D.C.?

    Washington, D.C. Reagan-National is currently the cheapest airport to fly to in Washington, D.C.. One-way flights to Washington, D.C. Reagan-National typically cost ฿3,052, while return flights cost around ฿16,416.

  • How much is a return flight to Washington, D.C.?

    A return flight to Washington, D.C. will typically cost around ฿503, however they can be found for as little as ฿503.

  • Where does the fastest flight to Washington, D.C. depart from?

    For those looking to save time traveling to Washington, D.C., Chiang Mai offers the quickest one-way flight (22 hours 40 minutes).

  • Does Washington, D.C. Dulles Intl have rental cars?

    Yes. Those touching down at Washington, D.C. Dulles Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Washington, D.C. Dulles Intl?

    Yes. Washington, D.C. Dulles Intl has hotels nearby for those requiring accommodations. Sleepbox Lounge Iad, Dulles International Airport is the closest property to Washington, D.C. Dulles Intl (0.0 km away from Washington, D.C. Dulles Intl).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Airports serving Washington, D.C.

Book a flight to or from one of these Washington, D.C. airports.
Flights to Reagan-National
Flights to Dulles Intl
Flights from Reagan-National
Flights from Dulles Intl

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