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฿19,371+ 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
25 May — 1 Jun1
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 25 April 2026.

Wed 29/401:00
BKK
-
IAD
1 stop28h 10m
Qatar Airways
Wed 6/521:00
IAD
-
BKK
1 stop30h 10m
Qatar Airways
Deal found 23/4฿34,661
Wed 29/419:00
BKK
-
IAD
1 stop34h 10m
Qatar Airways
Thu 7/521:00
IAD
-
BKK
1 stop30h 10m
Qatar Airways
Deal found 22/4฿34,693
Wed 29/419:00
BKK
-
IAD
1 stop34h 10m
Qatar Airways
Tue 5/521:00
IAD
-
BKK
1 stop30h 10m
Qatar Airways
Deal found 23/4฿34,952
Tue 20/1013:20
BKK
-
BWI
2 stops28h 01m
Multiple Airlines
Sat 31/1018:11
BWI
-
BKK
2 stops28h 39m
Multiple Airlines
Deal found 25/4฿35,050
Thu 1/1017:30
BKK
-
IAD
2 stops23h 10m
Multiple Airlines
Mon 2/1117:38
IAD
-
BKK
2 stops28h 12m
Multiple Airlines
Deal found 22/4฿35,276
Sun 7/609:35
BKK
-
IAD
2 stops44h 27m
United Airlines
Thu 23/708:15
IAD
-
BKK
2 stops28h 40m
United Airlines
Deal found 23/4฿35,568
Sat 6/609:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Sun 26/706:10
IAD
-
BKK
2 stops30h 45m
United Airlines
Deal found 23/4฿35,633
Thu 17/909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Mon 21/915:40
IAD
-
BKK
2 stops25h 55m
United Airlines
Deal found 22/4฿35,665
Thu 29/1007:10
BKK
-
DCA
2 stops44h 46m
United Airlines
Sun 1/1119:00
DCA
-
BKK
2 stops46h 10m
United Airlines
Deal found 23/4฿35,730
Tue 29/909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Tue 27/1017:15
IAD
-
BKK
3 stops31h 10m
United Airlines
Deal found 22/4฿35,730
Sat 2/519:40
BKK
-
IAD
1 stop33h 40m
Qatar Airways
Thu 7/521:00
IAD
-
BKK
1 stop22h 55m
Qatar Airways
Deal found 24/4฿35,762
Wed 10/619:45
BKK
-
IAD
1 stop33h 35m
Qatar Airways
Wed 9/921:00
IAD
-
BKK
1 stop22h 20m
Qatar Airways
Deal found 25/4฿35,827

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 25 April 2026.

Return from

฿35,050

One-way from

฿19,371

Popular in

April

Cheapest in

October

Average price

฿59,992
20/10-31/10
  • 20/10-31/10
  • 4 total stops
  • 56h 40m total
  • Bangkok to Washington, D.C.
Search Deals
25/5
  • 25/5
  • 3 total stops
  • 58h 20m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (฿7,960 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,075 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 25 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

Fri 5/6

01:35-20:06

2 stops29h 31m

Washington, D.C. Reagan-National

Mon 27/7

18:59-11:20

2 stops29h 21m

฿37,058
Fastest return journey

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 17/9

21:40-11:05

1 stop24h 25m

Washington, D.C. Dulles Intl

Mon 21/9

13:15-01:05

1 stop24h 50m

฿37,544

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 6/5

19:45-18:20

2 stops33h 35m

Washington, D.C. Dulles Intl

Wed 13/5

21:00-13:45

1 stop29h 45m

฿39,909

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 22/5

19:00-18:10

1 stop34h 10m

Washington, D.C. Dulles Intl

Tue 30/6

21:00-12:55

1 stop28h 55m

฿41,528

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Wed 27/5

10:50-05:40

2 stops29h 50m

Baltimore/Washington

Thu 3/9

18:16-09:45

2 stops28h 29m

฿42,014

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 3/7

15:20-15:40

1 stop35h 20m

Washington, D.C. Dulles Intl

Sat 25/7

18:50-00:05

1 stop42h 15m

฿43,634

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Mon 1/6

17:30-06:28

2 stops23h 58m

Baltimore/Washington

Fri 28/8

20:15-09:45

2 stops26h 30m

฿43,828

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 1/6

07:00-09:24

2 stops37h 24m

Washington, D.C. Dulles Intl

Mon 29/6

12:15-04:35

1 stop29h 20m

฿44,023

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Wed 27/5

21:05-18:20

2 stops32h 15m

Washington, D.C. Dulles Intl

Thu 3/9

11:05-04:40

2 stops30h 35m

฿44,087

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 13/6

15:45-23:32

3 stops42h 47m

Washington, D.C. Dulles Intl

Tue 11/8

17:42-09:35

3 stops28h 53m

฿44,930

Flights are sorted by cheapest return flights first.

Deals found on 24/4

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.

When is the best time to book a flight to Washington, D.C.?

The best time to book flights to Washington, D.C. is 35 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.

How long is the flight to Washington, D.C.?

On average, a flight from Bangkok to Washington, D.C. takes 27 hours 40 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 ฿31,315
ANA
ANA
From ฿34,321
Korean Air
Korean Air
From ฿32,757
Qatar Airways
Qatar Airways
From ฿36,411

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 25 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
9,650 reviews
Check prices

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

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
9,650 reviews
United Airlines
7.4
Good
9,650 reviews
Check prices

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

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 ฿3,028, while return flights cost around ฿48,824.

  • 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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