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฿20,106+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
10 Jul — 17 Jul1
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 10 June 2026.

Sun 20/915:25
BKK
-
IAD
1 stop35h 20m
ซาอุเดียแอร์ไลน์
Sun 27/918:50
IAD
-
BKK
1 stop31h 55m
ซาอุเดียแอร์ไลน์
Deal found 9/6฿29,798
Sun 20/915:45
BKK
-
IAD
3 stops38h 38m
United Airlines
Sun 27/922:13
IAD
-
BKK
2 stops48h 22m
United Airlines
Deal found 9/6฿29,831
Tue 9/609:35
BKK
-
IAD
1 stop41h 15m
United Airlines
Tue 16/606:33
IAD
-
BKK
2 stops35h 02m
United Airlines
Deal found 7/6฿30,817
Thu 11/609:35
BKK
-
IAD
1 stop41h 15m
United Airlines
Thu 18/608:29
IAD
-
BKK
2 stops28h 26m
United Airlines
Deal found 5/6฿30,882
Wed 10/607:00
BKK
-
IAD
2 stops25h 00m
United Airlines
Wed 9/912:35
IAD
-
BKK
1 stop29h 00m
United Airlines
Deal found 8/6฿31,112
Tue 7/709:35
BKK
-
IAD
1 stop41h 15m
United Airlines
Wed 22/722:29
IAD
-
BKK
2 stops38h 26m
United Airlines
Deal found 8/6฿31,310
Thu 25/609:35
BKK
-
DCA
2 stops46h 35m
United Airlines
Wed 15/715:10
DCA
-
BKK
2 stops45h 45m
United Airlines
Deal found 8/6฿31,342
Thu 25/609:35
BKK
-
IAD
2 stops50h 10m
United Airlines
Wed 15/717:42
IAD
-
BKK
2 stops43h 13m
United Airlines
Deal found 8/6฿31,342
Mon 28/907:00
BKK
-
DCA
2 stops25h 59m
United Airlines
Wed 30/915:30
DCA
-
BKK
2 stops26h 05m
United Airlines
Deal found 5/6฿31,375
Tue 7/709:35
BKK
-
IAD
2 stops48h 44m
United Airlines
Mon 27/707:00
IAD
-
BKK
2 stops39h 35m
United Airlines
Deal found 7/6฿31,375
Tue 7/709:35
BKK
-
DCA
2 stops47h 18m
United Airlines
Wed 22/711:57
DCA
-
BKK
3 stops34h 38m
United Airlines
Deal found 8/6฿31,408
Fri 26/607:00
BKK
-
IAD
2 stops27h 19m
United Airlines
Fri 3/720:18
IAD
-
BKK
2 stops26h 17m
United Airlines
Deal found 5/6฿31,408

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 10 June 2026.

Return from

฿29,798

One-way from

฿20,106

Popular in

April

Cheapest in

October

Average price

฿35,810
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 20/9-27/9
  • 2 total stops
  • 67h 15m total
  • Bangkok to Washington, D.C.
Search Deals
1/9
  • 1/9
  • 2 total stops
  • 28h 10m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (฿8,424 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,148 potential savings vs. average return price).
Search Deals
Average for return flights in June 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 10 June 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

Mon 28/9

07:00-21:59

2 stops25h 59m

Washington, D.C. Reagan-National

Wed 30/9

15:30-04:35

2 stops26h 05m

฿31,375

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 14/9

15:45-11:26

3 stops30h 41m

Washington, D.C. Dulles Intl

Mon 9/11

10:08-05:10

2 stops31h 02m

฿31,671

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 15/9

15:45-11:26

3 stops30h 41m

Washington, D.C. Dulles Intl

Tue 10/11

08:35-05:10

2 stops32h 35m

฿31,671

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 8/7

07:00-23:19

2 stops27h 19m

Washington, D.C. Dulles Intl

Wed 29/7

20:00-09:35

2 stops26h 35m

฿31,802

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 24/9

09:35-10:05

1 stop35h 30m

Washington, D.C. Dulles Intl

Wed 11/11

13:05-11:25

3 stops34h 20m

฿35,778

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 24/9

09:35-10:05

1 stop35h 30m

Washington, D.C. Dulles Intl

Thu 12/11

08:35-05:10

2 stops32h 35m

฿35,810

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 24/9

09:35-10:05

1 stop35h 30m

Washington, D.C. Dulles Intl

Tue 10/11

13:05-05:10

2 stops28h 05m

฿35,810

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 7/7

07:00-21:10

2 stops25h 10m

Washington, D.C. Reagan-National

Mon 27/7

11:57-09:35

3 stops34h 38m

฿36,172

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 25/6

07:00-21:53

2 stops25h 53m

Washington, D.C. Reagan-National

Wed 15/7

11:57-09:35

3 stops34h 38m

฿36,665

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 7/7

07:00-23:19

2 stops27h 19m

Washington, D.C. Dulles Intl

Tue 28/7

17:42-09:35

3 stops28h 53m

฿37,223

Flights are sorted by cheapest return flights first.

Deals found on 8/6

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 30 hours 1 minute. 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 ฿31,760
Korean Air
Korean Air
From ฿33,126
ANA
ANA
From ฿34,708
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿32,772

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 17 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.

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 10 June 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
9,804 reviews
Check prices

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,804 reviews
United Airlines
7.4
Good
9,804 reviews
Check prices

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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 ฿2,707, while return flights cost around ฿49,517.

  • 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 35 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

Fly with Cheapflights

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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.?

Cheapflights helps you find that perfect flight to Washington, D.C. by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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