฿21,005+ 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 27/10. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
22 Aug — 29 Aug1
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.
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 23 July 2026.

Thu 17/915:25
BKK
-
IAD
1 stop35h 20m
ซาอุเดียแอร์ไลน์
Sun 20/918:50
IAD
-
BKK
1 stop31h 55m
ซาอุเดียแอร์ไลน์
Deal found 20/7฿28,029
Thu 3/915:25
BKK
-
IAD
1 stop35h 20m
ซาอุเดียแอร์ไลน์
Fri 4/918:50
IAD
-
BKK
1 stop31h 55m
ซาอุเดียแอร์ไลน์
Deal found 19/7฿29,347
Tue 22/915:25
BKK
-
IAD
1 stop35h 20m
ซาอุเดียแอร์ไลน์
Sun 18/1018:50
IAD
-
BKK
1 stop31h 55m
ซาอุเดียแอร์ไลน์
Deal found 22/7฿32,555
Wed 12/809:35
BKK
-
IAD
1 stop41h 15m
United Airlines
Thu 20/815:40
IAD
-
BKK
2 stops25h 55m
United Airlines
Deal found 23/7฿34,243
Sat 12/909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Sat 26/917:20
IAD
-
BKK
3 stops29h 15m
United Airlines
Deal found 20/7฿34,277
Mon 21/909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Tue 9/308:35
IAD
-
BKK
2 stops32h 35m
United Airlines
Deal found 21/7฿34,378
Thu 17/909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Sun 20/917:15
IAD
-
BKK
3 stops29h 20m
United Airlines
Deal found 20/7฿34,412
Wed 28/1009:10
BKK
-
IAD
2 stops32h 59m
United Airlines
Sun 8/1115:34
IAD
-
BKK
3 stops31h 56m
United Airlines
Deal found 23/7฿34,446
Sun 13/909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Sat 26/922:18
IAD
-
BKK
2 stops43h 17m
United Airlines
Deal found 20/7฿34,480
Sat 12/907:00
BKK
-
DCA
2 stops26h 30m
United Airlines
Sat 26/913:15
DCA
-
BKK
3 stops33h 20m
United Airlines
Deal found 20/7฿34,513
Thu 19/1107:10
BKK
-
IAD
2 stops34h 18m
United Airlines
Mon 23/1122:23
IAD
-
BKK
2 stops42h 47m
United Airlines
Deal found 18/7฿34,513
Mon 7/909:35
BKK
-
DCA
2 stops47h 55m
United Airlines
Mon 21/911:57
DCA
-
BKK
3 stops34h 38m
United Airlines
Deal found 21/7฿34,547

Find flight deals to Washington, D.C.

Find the latest flights to Washington, D.C. in 2026, 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 23 July 2026.

Return from

฿28,029

One-way from

฿21,005

Popular in

April

Cheapest in

October

Average price

฿36,641
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 17/9-20/9
  • 2 total stops
  • 67h 15m total
  • Bangkok to Washington, D.C.
Search Deals
STARLUX Airlines
  • STARLUX Airlines
  • 27/10
  • 2 total stops
  • 46h 40m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (฿6,535 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (฿1,995 potential savings vs. average return price).
Search Deals
Average for return flights in July 2026
Search Deals

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 23 July 2026.
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 - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 21/9

09:35-10:05

1 stop35h 30m

Washington, D.C. Dulles Intl

Tue 9/3

08:35-05:10

2 stops32h 35m

฿34,378

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sat 12/9

07:00-22:30

2 stops26h 30m

Washington, D.C. Reagan-National

Sat 26/9

13:15-09:35

3 stops33h 20m

฿34,513

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 19/11

07:10-05:28

2 stops34h 18m

Washington, D.C. Dulles Intl

Mon 23/11

22:23-05:10

2 stops42h 47m

฿34,513

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 7/9

09:35-22:30

2 stops47h 55m

Washington, D.C. Reagan-National

Mon 21/9

11:57-09:35

3 stops34h 38m

฿34,547

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 3/10

09:35-22:52

2 stops48h 17m

Washington, D.C. Dulles Intl

Thu 15/10

06:35-23:55

2 stops30h 20m

฿34,547

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 17/9

07:00-22:30

2 stops26h 30m

Washington, D.C. Reagan-National

Sun 20/9

15:30-09:35

3 stops31h 05m

฿34,615

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 17/9

07:00-05:55

2 stops33h 55m

Washington, D.C. Dulles Intl

Sun 20/9

13:10-09:35

3 stops33h 25m

฿34,615

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 19/11

07:10-20:43

2 stops25h 33m

Washington, D.C. Reagan-National

Mon 23/11

12:57-00:20

3 stops47h 23m

฿34,716

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 13/9

07:00-21:59

2 stops25h 59m

Washington, D.C. Reagan-National

Sat 26/9

19:00-09:35

2 stops27h 35m

฿36,134

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 14/12

09:10-16:01

2 stops42h 51m

Washington, D.C. Dulles Intl

Tue 29/12

12:20-11:30

2 stops35h 10m

฿36,405

Flights are sorted by cheapest return flights first.

Deals found on 22/7

Showing 1-10 of 60 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
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.

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

On average, a flight from Bangkok to Washington, D.C. takes 24 hours 3 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, เอทิฮัดแอร์เวย์ and Korean Air.

United Airlines
United Airlines
From ฿27,630
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿33,686
Korean Air
Korean Air
From ฿34,050
Qatar Airways
Qatar Airways
From ฿37,959

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

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).

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, United Airlines 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.?

    Baltimore/Washington is currently the cheapest airport to fly to in Washington, D.C.. One-way flights to Baltimore/Washington typically cost ฿2,783, while return flights cost around ฿50,899.

  • 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 55 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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How does Cheapflights help users find flights to Washington, D.C.?

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Why should you use Cheapflights to find cheap flight tickets to Washington, D.C.?

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