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฿15,950+ 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 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
10 Jul — 17 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 5 July 2025.

Return from

฿31,964

One-way from

฿15,950

Popular in

August

Cheapest in

January

Average price

฿36,817
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 3/10-18/10
  • 2 total stops
  • 77h 40m total
  • Bangkok to Washington, D.C.
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30/8
  • 30/8
  • 2 total stops
  • 40h 39m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (฿107,006 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿40,328 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 5 July 2025.

Fri 3/1015:25BKK - IAD
1 stop35h 20mซาอุเดียแอร์ไลน์
Sat 18/1018:50IAD - BKK
1 stop42h 20mซาอุเดียแอร์ไลน์
Deal found 3/7฿31,964
Wed 17/921:40BKK - IAD
1 stop24h 15mKorean Air
Mon 13/1013:15IAD - BKK
1 stop24h 50mKorean Air
Deal found 4/7฿31,997
Thu 10/702:35BKK - DCA
2 stops30h 26mเดลต้า
Fri 18/706:59DCA - BKK
2 stops27h 46mเดลต้า
Deal found 3/7฿33,194
Thu 10/702:35BKK - IAD
2 stops32h 07mเดลต้า
Fri 18/707:45IAD - BKK
2 stops27h 00mเดลต้า
Deal found 3/7฿33,194
Wed 17/909:35BKK - IAD
1 stop41h 00mUnited Airlines
Mon 13/1013:20IAD - BKK
2 stops28h 15mUnited Airlines
Deal found 4/7฿33,388
Fri 10/1009:35BKK - DCA
3 stops41h 24mUnited Airlines
Tue 14/1020:00DCA - BKK
2 stops45h 35mUnited Airlines
Deal found 4/7฿33,614
Fri 4/713:55BKK - IAD
1 stop31h 10mANA
Mon 21/715:39IAD - BKK
2 stops25h 56mANA
Deal found 3/7฿34,261
Fri 3/1007:00BKK - IAD
2 stops23h 23mMultiple Airlines
Sat 18/1013:20IAD - BKK
2 stops28h 15mMultiple Airlines
Deal found 3/7฿34,844
Wed 17/908:40BKK - IAD
1 stop42h 00mQatar Airways
Mon 13/1021:00IAD - BKK
1 stop22h 15mQatar Airways
Deal found 5/7฿34,909
Mon 29/912:20BKK - IAD
2 stops42h 25mIndiGo
Fri 24/1013:30IAD - BKK
2 stops44h 35mIndiGo
Deal found 2/7฿34,941
Tue 18/1108:15BKK - DCA
2 stops38h 11mแอร์แคนาดา
Sat 29/1106:00DCA - BKK
2 stops36h 30mแอร์แคนาดา
Deal found 3/7฿36,397
Tue 18/1108:15BKK - IAD
2 stops39h 08mแอร์แคนาดา
Sat 29/1113:20IAD - BKK
2 stops29h 10mแอร์แคนาดา
Deal found 3/7฿36,397

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 5 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

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

฿31,964

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 17/9

21:40-10:55

1 stop24h 15m

Washington, D.C. Dulles Intl

Mon 13/10

13:15-01:05

1 stop24h 50m

฿31,997

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 5/12

01:00-23:17

2 stops34h 17m

Washington, D.C. Dulles Intl

Wed 31/12

06:00-23:20

2 stops29h 20m

฿33,194

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 17/9

09:35-15:35

1 stop41h 00m

Washington, D.C. Dulles Intl

Mon 13/10

13:20-04:35

2 stops28h 15m

฿33,388

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

20:00-04:35

2 stops45h 35m

฿33,614

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

฿34,423

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 3/10

07:00-19:23

2 stops23h 23m

Washington, D.C. Dulles Intl

Sat 18/10

13:20-04:35

2 stops28h 15m

฿34,844

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 17/9

08:40-15:40

1 stop42h 00m

Washington, D.C. Dulles Intl

Mon 13/10

21:00-06:15

1 stop22h 15m

฿34,909

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 29/9

12:20-19:45

2 stops42h 25m

Washington, D.C. Dulles Intl

Fri 24/10

13:30-21:05

2 stops44h 35m

฿34,941

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 18/11

08:15-10:26

2 stops38h 11m

Washington, D.C. Reagan-National

Sat 29/11

06:00-06:30

2 stops36h 30m

฿36,397

Flights are sorted by cheapest return flights first.

Deals found on 4/7

Showing 1-10 of 59 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 30 hours 38 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 ฿997
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 5 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
1,209 reviews
Check prices

Food

8.1

Boarding

8.4

Overall

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

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
1,209 reviews
EVA Air
8.4
Very Good
1,209 reviews
Check prices

Food

8.1

Boarding

8.4

Overall

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

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
1,102 reviews
EVA Air
8.4
Very Good
1,209 reviews
Check prices

Food

8.1

Boarding

8.4

Overall

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

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
887 reviews
EVA Air
8.4
Very Good
1,209 reviews
Check prices

Food

8.1

Boarding

8.4

Overall

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

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
1,503 reviews
EVA Air
8.4
Very Good
1,209 reviews
Check prices

Food

8.1

Boarding

8.4

Overall

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

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
1,209 reviews
Check prices

Food

8.1

Boarding

8.4

Overall

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

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 ฿3,024, while return flights cost around ฿16,266.

  • 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., Bangkok offers the quickest one-way flight (22 hours 25 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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