฿16,422+ 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 24/4. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
11 Apr — 18 Apr1
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 12 March 2026.

Tue 19/509:35
BKK
-
IAD
1 stop41h 05m
United Airlines
Mon 19/1008:15
IAD
-
BKK
2 stops28h 40m
United Airlines
Deal found 10/3฿25,331
Thu 27/809:35
BKK
-
IAD
2 stops61h 12m
United Airlines
Thu 10/906:15
IAD
-
BKK
2 stops30h 40m
United Airlines
Deal found 7/3฿25,395
Fri 28/807:00
BKK
-
DCA
2 stops25h 53m
United Airlines
Fri 11/906:00
DCA
-
BKK
2 stops30h 55m
United Airlines
Deal found 10/3฿25,616
Fri 28/807:00
BKK
-
IAD
2 stops26h 43m
United Airlines
Fri 11/906:15
IAD
-
BKK
2 stops30h 40m
United Airlines
Deal found 10/3฿25,616
Tue 19/509:35
BKK
-
IAD
2 stops46h 36m
United Airlines
Tue 17/1110:05
IAD
-
BKK
2 stops37h 20m
United Airlines
Deal found 10/3฿25,680
Fri 28/809:35
BKK
-
IAD
1 stop41h 15m
United Airlines
Wed 16/908:29
IAD
-
BKK
2 stops28h 26m
United Airlines
Deal found 10/3฿25,743
Tue 6/1015:45
BKK
-
IAD
3 stops30h 49m
United Airlines
Sun 1/1106:30
IAD
-
BKK
2 stops40h 55m
United Airlines
Deal found 10/3฿25,775
Wed 30/909:35
BKK
-
IAD
2 stops45h 58m
United Airlines
Wed 4/1118:50
IAD
-
BKK
2 stops28h 35m
United Airlines
Deal found 10/3฿25,807
Fri 4/1216:55
BKK
-
DCA
3 stops26h 24m
United Airlines
Tue 8/1207:50
DCA
-
BKK
2 stops39h 35m
United Airlines
Deal found 8/3฿25,965
Fri 9/1015:45
BKK
-
IAD
3 stops30h 49m
United Airlines
Fri 23/1008:25
IAD
-
BKK
2 stops40h 00m
United Airlines
Deal found 10/3฿26,029
Fri 28/807:00
BKK
-
DCA
2 stops25h 53m
United Airlines
Wed 16/906:00
DCA
-
BKK
2 stops30h 55m
United Airlines
Deal found 10/3฿26,251
Thu 17/922:45
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Fri 9/1013:20
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 10/3฿27,455

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 12 March 2026.

Return from

฿25,331

One-way from

฿16,422

Popular in

August

Cheapest in

October

Average price

฿44,353
United Airlines
  • United Airlines
  • 19/5-19/10
  • 3 total stops
  • 69h 45m total
  • Bangkok to Washington, D.C.
Search Deals
24/4
  • 24/4
  • 3 total stops
  • 47h 27m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿535 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿994 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 12 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

Thu 27/8

09:35-11:47

2 stops61h 12m

Washington, D.C. Dulles Intl

Thu 10/9

06:15-23:55

2 stops30h 40m

฿25,395

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 1/9

16:45-07:28

2 stops25h 43m

Washington, D.C. Dulles Intl

Tue 3/11

17:38-10:45

2 stops29h 07m

฿33,162

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 26/4

09:35-14:14

2 stops39h 39m

Washington, D.C. Reagan-National

Sun 3/5

11:55-09:35

3 stops34h 40m

฿33,320

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 22/4

21:40-17:30

2 stops30h 50m

Washington, D.C. Reagan-National

Sun 12/7

09:00-23:35

2 stops27h 35m

฿36,554

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 22/4

21:40-17:30

2 stops30h 50m

Washington, D.C. Reagan-National

Wed 8/7

10:00-23:35

2 stops26h 35m

฿36,554

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 22/4

21:40-17:30

2 stops30h 50m

Washington, D.C. Reagan-National

Tue 7/7

09:00-01:05

2 stops29h 05m

฿36,554

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 22/4

21:40-17:30

2 stops30h 50m

Washington, D.C. Reagan-National

Thu 9/7

10:00-23:35

2 stops26h 35m

฿36,554

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 6/5

21:40-00:15

2 stops37h 35m

Washington, D.C. Dulles Intl

Wed 13/5

08:05-21:45

2 stops26h 40m

฿36,554

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 2/4

09:15-08:45

1 stop34h 30m

Washington, D.C. Dulles Intl

Sat 18/4

20:20-13:20

1 stop30h 00m

฿36,618

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 24/4

07:00-16:04

3 stops44h 04m

Washington, D.C. Reagan-National

Fri 1/5

15:30-09:35

3 stops31h 05m

฿37,093

Flights are sorted by cheapest return flights first.

Deals found on 11/3

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 24 hours 57 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, Korean Air and ANA.

United Airlines
United Airlines
From ฿30,764
Korean Air
Korean Air
From ฿32,060
ANA
ANA
From ฿33,590
Qatar Airways
Qatar Airways
From ฿35,635

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 ฿2,964, while return flights cost around ฿47,784.

  • 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 0 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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