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฿19,870+ 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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
8 Jun — 15 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 9 May 2026.

Mon 7/915:45
BKK
-
DCA
3 stops29h 32m
United Airlines
Sun 13/911:30
DCA
-
BKK
3 stops35h 05m
United Airlines
Deal found 6/5฿35,843
Sat 19/909:35
BKK
-
IAD
2 stops31h 00m
United Airlines
Sat 3/1017:15
IAD
-
BKK
3 stops29h 20m
United Airlines
Deal found 7/5฿35,843
Sat 19/909:35
BKK
-
IAD
2 stops31h 00m
United Airlines
Sun 4/1008:35
IAD
-
BKK
2 stops33h 00m
United Airlines
Deal found 7/5฿35,875
Mon 15/615:45
BKK
-
DCA
3 stops28h 09m
United Airlines
Mon 3/817:59
DCA
-
BKK
2 stops42h 56m
United Airlines
Deal found 7/5฿35,940
Sun 14/621:35
BKK
-
IAD
1 stop23h 30m
ANA
Tue 4/815:30
IAD
-
BKK
2 stops26h 05m
ANA
Deal found 6/5฿35,940
Thu 22/1007:00
BKK
-
DCA
2 stops25h 53m
United Airlines
Mon 26/1010:30
DCA
-
BKK
2 stops31h 40m
United Airlines
Deal found 6/5฿35,972
Mon 15/601:50
BKK
-
IAD
1 stop24h 50m
Multiple Airlines
Wed 5/815:10
IAD
-
BKK
1 stop21h 40m
Multiple Airlines
Deal found 6/5฿35,972
Sat 26/1220:30
BKK
-
IAD
1 stop23h 50m
Qatar Airways
Mon 11/120:05
IAD
-
BKK
1 stop22h 10m
Qatar Airways
Deal found 5/5฿36,197
Sat 10/1021:05
BKK
-
IAD
1 stop29h 35m
Qatar Airways
Sat 24/1021:00
IAD
-
BKK
1 stop22h 40m
Qatar Airways
Deal found 6/5฿36,229
Sat 10/1015:45
BKK
-
DCA
3 stops28h 30m
United Airlines
Fri 23/1007:50
DCA
-
BKK
2 stops40h 35m
United Airlines
Deal found 4/5฿36,262
Sun 11/1002:30
BKK
-
IAD
1 stop24h 10m
Qatar Airways
Sun 25/1020:05
IAD
-
BKK
1 stop23h 10m
Qatar Airways
Deal found 5/5฿36,262
Mon 7/920:00
BKK
-
IAD
1 stop23h 45m
Qatar Airways
Sun 13/921:00
IAD
-
BKK
1 stop22h 20m
Qatar Airways
Deal found 6/5฿36,390

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 May 2026.

Return from

฿35,843

One-way from

฿19,870

Popular in

April

Cheapest in

October

Average price

฿41,382
United Airlines
  • United Airlines
  • 7/9-13/9
  • 6 total stops
  • 64h 37m total
  • Bangkok to Washington, D.C.
Search Deals
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 6/7
  • 1 total stop
  • 24h 50m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (฿7,913 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,062 potential savings vs. average return price).
Search Deals
Average for return flights in May 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 May 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 15/6

15:45-08:54

3 stops28h 09m

Washington, D.C. Reagan-National

Tue 4/8

07:55-23:55

2 stops29h 00m

฿35,940

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 22/10

15:45-14:56

3 stops34h 11m

Washington, D.C. Reagan-National

Mon 26/10

11:30-05:10

2 stops30h 40m

฿36,326
Fastest return journey

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 22/5

02:30-18:20

1 stop26h 50m

Washington, D.C. Dulles Intl

Tue 30/6

21:00-07:15

1 stop23h 15m

฿38,355

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 21/7

09:35-14:12

2 stops39h 37m

Washington, D.C. Dulles Intl

Sat 1/8

22:20-09:35

2 stops48h 15m

฿39,353

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 15/6

15:45-07:30

2 stops26h 45m

Washington, D.C. Dulles Intl

Tue 4/8

22:20-09:35

2 stops48h 15m

฿39,546

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 12/6

19:45-18:20

1 stop33h 35m

Washington, D.C. Dulles Intl

Tue 30/6

21:00-07:15

1 stop23h 15m

฿39,836

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Wed 10/6

09:00-19:40

2 stops45h 40m

Baltimore/Washington

Wed 9/9

19:25-06:50

2 stops48h 25m

฿40,448

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 3/8

09:35-16:30

2 stops41h 55m

Washington, D.C. Dulles Intl

Thu 3/9

12:15-04:35

1 stop29h 20m

฿40,899

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

18:59-11:20

2 stops29h 21m

฿41,446

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sat 27/6

07:00-07:46

2 stops35h 46m

Washington, D.C. Reagan-National

Thu 9/7

11:57-09:35

3 stops34h 38m

฿42,928

Flights are sorted by cheapest return flights first.

Deals found on 8/5

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 26 hours 21 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 ฿31,131
ANA
ANA
From ฿34,120
Korean Air
Korean Air
From ฿32,566
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿32,124

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 9 May 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
9,692 reviews
Check prices

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

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
9,692 reviews
United Airlines
7.4
Good
9,692 reviews
Check prices

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

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 ฿3,010, while return flights cost around ฿48,538.

  • 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 (23 hours 58 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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