฿19,439+ 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 25/5. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
9 May — 16 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 9 April 2026.

Mon 15/607:00
BKK
-
IAD
2 stops59h 26m
United Airlines
Mon 20/722:15
IAD
-
BKK
2 stops43h 20m
United Airlines
Deal found 4/4฿25,973
Wed 26/807:00
BKK
-
IAD
2 stops25h 09m
United Airlines
Wed 9/912:35
IAD
-
BKK
1 stop29h 00m
United Airlines
Deal found 5/4฿26,005
Sun 21/607:00
BKK
-
IAD
2 stops25h 00m
United Airlines
Thu 23/706:30
IAD
-
BKK
2 stops59h 05m
United Airlines
Deal found 4/4฿26,101
Tue 25/807:00
BKK
-
IAD
2 stops25h 09m
United Airlines
Fri 28/809:00
IAD
-
BKK
2 stops37h 35m
United Airlines
Deal found 6/4฿26,133
Tue 30/607:00
BKK
-
IAD
2 stops25h 01m
United Airlines
Wed 22/706:30
IAD
-
BKK
2 stops35h 05m
United Airlines
Deal found 5/4฿26,165
Tue 25/807:00
BKK
-
DCA
2 stops25h 53m
United Airlines
Fri 28/808:30
DCA
-
BKK
2 stops28h 25m
United Airlines
Deal found 6/4฿26,261
Mon 6/709:35
BKK
-
IAD
2 stops46h 26m
United Airlines
Wed 15/722:20
IAD
-
BKK
2 stops48h 15m
United Airlines
Deal found 5/4฿26,389
Tue 30/607:00
BKK
-
IAD
2 stops27h 19m
ANA
Wed 22/712:50
IAD
-
BKK
1 stop28h 45m
ANA
Deal found 5/4฿26,741
Sun 12/402:30
BKK
-
IAD
1 stop24h 40m
Multiple Airlines
Sun 26/414:05
IAD
-
BKK
1 stop29h 40m
Multiple Airlines
Deal found 5/4฿32,185
Mon 1/615:10
BKK
-
DCA
2 stops39h 56m
Multiple Airlines
Mon 29/618:59
DCA
-
BKK
2 stops29h 21m
Multiple Airlines
Deal found 5/4฿32,442
Thu 1/1009:35
BKK
-
IAD
2 stops45h 58m
United Airlines
Mon 5/1017:30
IAD
-
BKK
2 stops29h 05m
United Airlines
Deal found 7/4฿32,698
Thu 1/1016:45
BKK
-
BWI
2 stops24h 45m
Multiple Airlines
Sun 11/1018:11
BWI
-
BKK
2 stops29h 14m
Multiple Airlines
Deal found 6/4฿32,826

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 9 April 2026.

Return from

฿25,973

One-way from

฿19,439

Popular in

April

Cheapest in

October

Average price

฿59,311
United Airlines
  • United Airlines
  • 15/6-20/7
  • 4 total stops
  • 102h 46m total
  • Bangkok to Washington, D.C.
Search Deals
แอร์แคนาดา
  • แอร์แคนาดา
  • 25/5
  • 2 total stops
  • 39h 38m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (฿7,788 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,042 potential savings vs. average return price).
Search Deals
Average for return flights in April 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 9 April 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 - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 1/10

09:35-17:48

2 stops43h 13m

Washington, D.C. Reagan-National

Mon 5/10

11:30-09:35

3 stops35h 05m

฿33,595

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 1/10

07:00-11:43

2 stops39h 43m

Washington, D.C. Dulles Intl

Mon 5/10

06:00-09:35

2 stops40h 35m

฿33,691

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 25/8

15:45-10:17

3 stops29h 32m

Washington, D.C. Reagan-National

Fri 28/8

11:30-09:35

3 stops35h 05m

฿33,947

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 10/6

09:50-00:25

2 stops25h 35m

Washington, D.C. Dulles Intl

Wed 12/8

07:10-21:45

2 stops27h 35m

฿35,164

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 28/6

07:00-21:00

2 stops25h 00m

Washington, D.C. Dulles Intl

Mon 14/9

12:35-04:35

1 stop29h 00m

฿35,644

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 30/9

02:35-21:21

2 stops29h 46m

Washington, D.C. Reagan-National

Mon 5/10

10:00-01:05

2 stops28h 05m

฿36,028

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 6/7

15:45-09:59

3 stops29h 14m

Washington, D.C. Reagan-National

Wed 15/7

06:00-23:55

2 stops30h 55m

฿38,014
Fastest return journey

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 1/6

09:50-00:13

2 stops25h 23m

Washington, D.C. Dulles Intl

Fri 28/8

13:30-23:35

1 stop23h 05m

฿38,526

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 23/6

15:45-11:59

3 stops31h 14m

Washington, D.C. Reagan-National

Sun 13/9

18:00-09:35

3 stops28h 35m

฿39,359

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 23/6

15:45-11:01

3 stops30h 16m

Washington, D.C. Reagan-National

Tue 15/9

18:00-09:35

3 stops28h 35m

฿39,359

Flights are sorted by cheapest return flights first.

Deals found on 8/4

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 25 hours 26 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 ฿31,076
ANA
ANA
From ฿33,931
Korean Air
Korean Air
From ฿32,385
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿31,946

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 ฿2,994, while return flights cost around ฿48,269.

  • Where does the fastest flight to Washington, D.C. depart from?

    For those looking to save time traveling to Washington, D.C., Chiang Mai offers the quickest one-way flight (21 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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Why should you use Cheapflights to find cheap flight tickets to Washington, D.C.?

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