฿18,688+ 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 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
26 Apr — 3 May1
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 27 March 2026.

Thu 27/809:35
BKK
-
IAD
1 stop41h 15m
United Airlines
Thu 10/906:15
IAD
-
BKK
2 stops30h 40m
United Airlines
Deal found 22/3฿26,111
Fri 26/609:35
BKK
-
IAD
2 stops48h 44m
United Airlines
Fri 28/806:30
IAD
-
BKK
2 stops35h 05m
United Airlines
Deal found 21/3฿26,176
Wed 2/909:35
BKK
-
DCA
2 stops46h 08m
United Airlines
Sun 6/908:30
DCA
-
BKK
2 stops28h 25m
United Airlines
Deal found 22/3฿26,275
Thu 24/907:00
BKK
-
IAD
2 stops24h 33m
United Airlines
Mon 28/917:30
IAD
-
BKK
2 stops29h 05m
United Airlines
Deal found 22/3฿26,275
Tue 8/915:45
BKK
-
IAD
3 stops30h 41m
United Airlines
Thu 17/920:30
IAD
-
BKK
2 stops26h 05m
United Airlines
Deal found 23/3฿26,538
Tue 12/522:45
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Wed 3/613:20
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 23/3฿29,723
Thu 14/519:35
BKK
-
IAD
1 stop34h 55m
Multiple Airlines
Fri 29/513:20
IAD
-
BKK
1 stop44h 50m
Multiple Airlines
Deal found 23/3฿29,756
Wed 7/1016:45
BKK
-
BWI
2 stops24h 36m
Multiple Airlines
Sun 18/1018:11
BWI
-
BKK
2 stops29h 14m
Multiple Airlines
Deal found 23/3฿33,041
Wed 7/1007:00
BKK
-
DCA
2 stops25h 53m
United Airlines
Sun 18/1007:30
DCA
-
BKK
2 stops34h 05m
United Airlines
Deal found 23/3฿33,106
Wed 3/609:50
BKK
-
DCA
2 stops24h 38m
เดลต้า
Thu 20/806:00
DCA
-
BKK
2 stops28h 45m
เดลต้า
Deal found 23/3฿33,238
Tue 6/1001:35
BKK
-
DCA
2 stops29h 25m
Multiple Airlines
Sun 18/1009:30
DCA
-
BKK
2 stops37h 55m
Multiple Airlines
Deal found 26/3฿33,435
Wed 3/615:45
BKK
-
DCA
3 stops30h 16m
United Airlines
Thu 20/811:30
DCA
-
BKK
3 stops35h 05m
United Airlines
Deal found 23/3฿33,829

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 27 March 2026.

Return from

฿26,111

One-way from

฿18,688

Popular in

August

Cheapest in

October

Average price

฿45,948
United Airlines
  • United Airlines
  • 27/8-10/9
  • 3 total stops
  • 71h 55m total
  • Bangkok to Washington, D.C.
Search Deals
18/5
  • 18/5
  • 3 total stops
  • 55h 03m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (฿942 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿1,069 potential savings vs. average return price).
Search Deals
Average for return flights in March 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 27 March 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

Tue 12/5

22:45-10:50

1 stop23h 05m

Washington, D.C. Dulles Intl

Wed 3/6

13:20-21:10

1 stop44h 50m

฿29,986

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 2/9

07:00-21:53

2 stops25h 53m

Washington, D.C. Reagan-National

Sun 6/9

14:50-09:35

3 stops31h 45m

฿33,303

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 26/8

01:35-20:00

2 stops29h 25m

Washington, D.C. Reagan-National

Thu 10/9

09:30-10:50

2 stops38h 20m

฿33,369

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 8/9

09:15-15:40

1 stop41h 25m

Washington, D.C. Dulles Intl

Thu 17/9

21:00-19:05

1 stop35h 05m

฿35,570

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 6/5

21:40-23:32

2 stops36h 52m

Washington, D.C. Dulles Intl

Wed 13/5

07:00-23:35

2 stops29h 35m

฿36,391

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 6/5

09:05-08:40

1 stop34h 35m

Washington, D.C. Dulles Intl

Wed 13/5

11:00-20:45

1 stop22h 45m

฿36,424

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 14/6

02:35-00:25

2 stops32h 50m

Washington, D.C. Dulles Intl

Tue 14/7

13:30-01:05

1 stop24h 35m

฿36,522

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 1/6

21:40-16:36

2 stops29h 56m

Washington, D.C. Dulles Intl

Tue 30/6

07:15-21:45

2 stops27h 30m

฿41,481
Fastest return journey

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 16/6

21:40-11:15

1 stop24h 35m

Washington, D.C. Dulles Intl

Thu 16/7

13:30-23:35

1 stop23h 05m

฿41,974

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Wed 6/5

13:20-05:40

2 stops27h 20m

Baltimore/Washington

Wed 13/5

18:25-12:10

2 stops30h 45m

฿42,106

Flights are sorted by cheapest return flights first.

Deals found on 26/3

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 27 hours 12 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 Korean Air.

United Airlines
United Airlines
From ฿31,870
ANA
ANA
From ฿34,798
Korean Air
Korean Air
From ฿33,116
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿32,762

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).

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.?

    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 ฿3,070, while return flights cost around ฿49,502.

  • 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 (23 hours 5 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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