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฿19,696+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
19 May — 26 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 19 April 2026.

Sun 17/519:10
BKK
-
BWI
2 stops35h 30m
Multiple Airlines
Sun 31/521:35
BWI
-
BKK
2 stops46h 20m
Multiple Airlines
Deal found 18/4฿34,643
Thu 30/402:30
BKK
-
IAD
1 stop26h 40m
Qatar Airways
Sun 10/521:00
IAD
-
BKK
1 stop22h 50m
Qatar Airways
Deal found 15/4฿34,961
Wed 10/619:45
BKK
-
IAD
1 stop33h 25m
Multiple Airlines
Wed 9/921:00
IAD
-
BKK
1 stop29h 25m
Multiple Airlines
Deal found 16/4฿34,993
Thu 1/1009:35
BKK
-
DCA
2 stops47h 18m
United Airlines
Mon 12/1018:00
DCA
-
BKK
2 stops47h 35m
United Airlines
Deal found 17/4฿35,025
Thu 1/1009:35
BKK
-
IAD
2 stops46h 47m
United Airlines
Mon 12/1022:10
IAD
-
BKK
2 stops43h 25m
United Airlines
Deal found 17/4฿35,025
Mon 25/509:50
BKK
-
DCA
2 stops23h 54m
เดลต้า
Wed 16/910:00
DCA
-
BKK
2 stops28h 05m
เดลต้า
Deal found 14/4฿35,121
Mon 25/509:50
BKK
-
IAD
2 stops26h 01m
เดลต้า
Wed 16/906:00
IAD
-
BKK
2 stops28h 45m
เดลต้า
Deal found 14/4฿35,121
Mon 1/609:50
BKK
-
IAD
2 stops25h 23m
เดลต้า
Fri 28/807:25
IAD
-
BKK
2 stops27h 20m
เดลต้า
Deal found 16/4฿35,280
Thu 7/521:40
BKK
-
IAD
2 stops37h 35m
เดลต้า
Thu 5/1107:05
IAD
-
BKK
2 stops29h 40m
เดลต้า
Deal found 15/4฿35,312
Fri 25/1223:15
BKK
-
IAD
1 stop22h 35m
Korean Air
Fri 8/111:50
IAD
-
BKK
1 stop23h 30m
Korean Air
Deal found 15/4฿35,344
Thu 7/519:40
BKK
-
IAD
1 stop33h 30m
Qatar Airways
Thu 5/1120:05
IAD
-
BKK
1 stop35h 20m
Qatar Airways
Deal found 15/4฿35,376
Thu 24/909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Mon 28/913:05
IAD
-
BKK
2 stops28h 30m
United Airlines
Deal found 18/4฿35,471

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 19 April 2026.

Return from

฿34,643

One-way from

฿19,696

Popular in

April

Cheapest in

October

Average price

฿59,023
17/5-31/5
  • 17/5-31/5
  • 4 total stops
  • 81h 50m total
  • Bangkok to Washington, D.C.
Search Deals
1/6
  • 1/6
  • 3 total stops
  • 57h 23m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (฿7,831 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,041 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 19 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

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

฿35,121

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 24/9

09:35-10:05

1 stop35h 30m

Washington, D.C. Dulles Intl

Mon 28/9

13:05-04:35

2 stops28h 30m

฿35,471

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Thu 1/10

13:20-06:30

2 stops28h 10m

Baltimore/Washington

Mon 12/10

18:11-12:10

2 stops30h 59m

฿36,204

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 26/6

09:55-15:40

1 stop40h 45m

Washington, D.C. Dulles Intl

Wed 9/9

21:00-12:55

1 stop28h 55m

฿36,204

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

21:00-13:45

1 stop29h 45m

฿36,587

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 9/6

01:35-20:00

2 stops29h 25m

Washington, D.C. Reagan-National

Wed 9/9

09:30-11:20

2 stops38h 50m

฿36,619

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 5/5

19:40-18:20

1 stop33h 40m

Washington, D.C. Dulles Intl

Fri 28/8

21:00-19:25

1 stop35h 25m

฿36,874

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 24/9

09:55-08:45

1 stop33h 50m

Washington, D.C. Dulles Intl

Mon 28/9

21:00-19:05

1 stop35h 05m

฿37,352

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 30/4

19:00-18:10

1 stop34h 10m

Washington, D.C. Dulles Intl

Wed 6/5

21:00-14:00

2 stops30h 00m

฿37,670

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 28/7

07:00-00:55

2 stops28h 55m

Washington, D.C. Dulles Intl

Wed 26/8

08:29-23:55

2 stops28h 26m

฿37,862

Flights are sorted by cheapest return flights first.

Deals found on 16/4

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 28 hours 8 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 ฿30,809
ANA
ANA
From ฿33,766
Korean Air
Korean Air
From ฿32,228
Qatar Airways
Qatar Airways
From ฿35,823

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 19 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
9,604 reviews
Check prices

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,604 reviews
United Airlines
7.4
Good
9,604 reviews
Check prices

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 ฿2,979, while return flights cost around ฿48,035.

  • 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 (25 hours 34 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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