฿14,732+ Cheap flights to Washington, D.C.

— WAS
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Flights to Washington, D.C. in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Washington, D.C.

Sat 19/1215:20 -
1 stop35h 25m
Fri 15/117:50 -
1 stop31h 50m
Deal found 11/11฿29,532
Mon 16/1119:55 -
1 stop25h 05m
Mon 30/1117:25 -
2 stops26h 45m
Deal found 9/11฿31,474
Sat 19/1220:50 -
1 stop24h 10m
Fri 15/114:25 -
1 stop28h 10m
Deal found 9/11฿32,612
Sun 20/1202:55 -
1 stop42h 05m
Thu 14/114:25 -
1 stop39h 20m
Deal found 10/11฿32,880
Mon 16/1120:50 -
1 stop24h 10m
Mon 30/1114:25 -
1 stop21h 15m
Deal found 9/11฿33,215
Mon 21/1202:55 -
1 stop42h 05m
Wed 6/114:25 -
1 stop33h 10m
Deal found 11/11฿33,717
Sat 21/1115:15 -
1 stop29h 45m
Sat 28/1114:25 -
1 stop21h 15m
Deal found 11/11฿34,688

Find flight deals to Washington, D.C.

Return from

฿27,355

One-way from

฿14,732

Popular in

April

Cheapest in

January

Average price

฿37,032
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 21/12-8/1
  • 2 total stops
  • 66h 20m total
  • Bangkok to Washington, D.C.
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เอทิฮัดแอร์เวย์
  • เอทิฮัดแอร์เวย์
  • 25/11-31/12
  • 1 total stop
  • 29h 45m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (฿9,714 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (฿2,093 potential savings vs. average return price).
Search Deals
Average for return flights in November 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights to Washington, D.C. that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Mon 21/12

19:30-18:30

1 stop35h 00m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿15,871

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Sun 13/12

08:15-15:55

1 stop43h 40m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿24,342

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Sat 5/12

08:15-15:55

1 stop43h 40m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿24,342

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Fri 25/12

16:55-10:02

3 stops29h 07m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿30,034

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Mon 25/1

16:55-11:42

3 stops30h 47m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿30,067

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Thu 7/1

14:40-09:00

1 stop30h 20m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿32,076
Fastest return journey

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Thu 31/12

05:55-19:25

1 stop25h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿33,751

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Sat 28/11

09:00-07:25

2 stops34h 25m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿34,621

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Tue 19/1

16:55-11:42

3 stops30h 47m

Washington, D.C. Dulles Intl

Fri 22/1

22:37-11:30

2 stops48h 53m

฿35,425

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Tue 19/1

16:55-11:42

3 stops30h 47m

Washington, D.C. Dulles Intl

Thu 21/1

12:20-11:30

2 stops35h 10m

฿35,994

Flights are sorted by cheapest return flights first.

Deals found on 9/11

Showing 1-10 of 22 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight to Washington, D.C.

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

On average, a flight from Bangkok to Washington, D.C. takes 26 hours 36 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 Korean Air, United Airlines and Qatar Airways.

Korean Air
Korean Air
From ฿34,656
United Airlines
United Airlines
From ฿27,098
Qatar Airways
Qatar Airways
From ฿36,517
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿30,955

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

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

Rainfall in Washington, D.C. 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

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).

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

The best time to book flights to Washington, D.C. is 90 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.

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, เอทิฮัดแอร์เวย์ is rated the highest out of the airlines that fly to Washington, D.C..

  • 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 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

Airports serving Washington, D.C.

Flights to Reagan-National
Flights to Dulles Intl
Flights from Reagan-National
Flights from Dulles Intl

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