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฿17,759+ 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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
14 May — 21 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 14 April 2026.

Mon 25/509:50
BKK
-
DCA
2 stops23h 54m
เดลต้า
Wed 16/910:00
DCA
-
BKK
2 stops28h 05m
เดลต้า
Deal found 14/4฿35,454
Mon 25/509:50
BKK
-
IAD
2 stops26h 01m
เดลต้า
Wed 16/906:00
IAD
-
BKK
2 stops28h 45m
เดลต้า
Deal found 14/4฿35,454
Sun 3/519:45
BKK
-
IAD
1 stop33h 25m
Multiple Airlines
Thu 7/515:10
IAD
-
BKK
1 stop28h 35m
Multiple Airlines
Deal found 14/4฿35,615
Mon 4/502:30
BKK
-
IAD
1 stop26h 40m
Multiple Airlines
Wed 6/515:10
IAD
-
BKK
1 stop28h 35m
Multiple Airlines
Deal found 13/4฿35,711
Thu 27/809:35
BKK
-
IAD
2 stops39h 20m
ANA
Thu 10/912:35
IAD
-
BKK
1 stop29h 00m
ANA
Deal found 11/4฿35,808
Sat 23/523:30
BKK
-
IAD
2 stops35h 45m
เดลต้า
Tue 30/607:15
IAD
-
BKK
2 stops27h 30m
เดลต้า
Deal found 13/4฿35,840
Wed 10/609:50
BKK
-
IAD
2 stops25h 35m
เดลต้า
Wed 12/807:00
IAD
-
BKK
2 stops29h 35m
เดลต้า
Deal found 12/4฿35,872
Fri 26/609:55
BKK
-
IAD
1 stop40h 45m
Multiple Airlines
Wed 9/921:00
IAD
-
BKK
1 stop28h 55m
Multiple Airlines
Deal found 13/4฿35,904
Fri 26/607:05
BKK
-
DCA
2 stops36h 47m
แอร์แคนาดา
Sat 19/911:00
DCA
-
BKK
2 stops31h 05m
แอร์แคนาดา
Deal found 10/4฿35,937
Thu 21/501:30
BKK
-
IAD
1 stop29h 00m
Multiple Airlines
Tue 7/715:10
IAD
-
BKK
1 stop28h 05m
Multiple Airlines
Deal found 12/4฿35,937
Mon 29/609:55
BKK
-
IAD
1 stop33h 50m
Qatar Airways
Tue 15/921:00
IAD
-
BKK
1 stop22h 20m
Qatar Airways
Deal found 10/4฿35,969
Wed 24/607:05
BKK
-
DCA
2 stops26h 26m
แอร์แคนาดา
Sun 13/906:59
DCA
-
BKK
2 stops29h 21m
แอร์แคนาดา
Deal found 10/4฿36,001

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 14 April 2026.

Return from

฿35,454

One-way from

฿17,759

Popular in

April

Cheapest in

October

Average price

฿59,583
เดลต้า
  • เดลต้า
  • 25/5-16/9
  • 4 total stops
  • 51h 59m total
  • Bangkok to Washington, D.C.
Search Deals
13/5
  • 13/5
  • 3 total stops
  • 54h 18m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (฿7,824 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,052 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 14 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 - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 10/6

09:50-00:25

2 stops25h 35m

Washington, D.C. Dulles Intl

Wed 9/9

07:25-23:35

2 stops29h 10m

฿35,454
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

07:25-21:45

2 stops27h 20m

฿35,454

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 29/6

07:00-21:53

2 stops25h 53m

Washington, D.C. Reagan-National

Thu 10/9

11:30-09:35

3 stops35h 05m

฿36,387

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 5/5

01:00-18:10

1 stop28h 10m

Washington, D.C. Dulles Intl

Wed 13/5

21:00-13:05

1 stop29h 05m

฿36,484

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 29/6

07:00-21:53

2 stops25h 53m

Washington, D.C. Reagan-National

Wed 8/7

08:30-23:55

2 stops28h 25m

฿36,612

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 5/5

02:30-18:10

1 stop26h 40m

Washington, D.C. Dulles Intl

Wed 13/5

21:00-13:05

1 stop29h 05m

฿36,773

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 1/10

09:55-15:40

1 stop40h 45m

Washington, D.C. Dulles Intl

Mon 5/10

21:00-19:25

1 stop35h 25m

฿36,805

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 25/4

01:00-18:10

1 stop28h 10m

Washington, D.C. Dulles Intl

Thu 28/5

21:00-13:05

1 stop29h 05m

฿37,352

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 23/5

02:30-18:10

1 stop26h 40m

Washington, D.C. Dulles Intl

Sun 31/5

21:00-13:05

1 stop29h 05m

฿37,577

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 3/9

07:00-19:21

2 stops23h 21m

Washington, D.C. Dulles Intl

Thu 3/9

22:10-04:35

2 stops43h 25m

฿38,382

Flights are sorted by cheapest return flights first.

Deals found on 12/4

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 29 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 United Airlines, ANA and Korean Air.

United Airlines
United Airlines
From ฿31,101
ANA
ANA
From ฿34,087
Korean Air
Korean Air
From ฿32,534
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿32,092

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).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated 14 April 2026.
Read reviews from past customers who have flown United Airlines to the United States. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,581 reviews
Check prices

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,581 reviews
United Airlines
7.4
Good
9,581 reviews
Check prices

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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 ฿3,007, while return flights cost around ฿48,491.

  • 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

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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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