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฿19,905+ 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 27/10. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
18 Jul — 25 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 18 June 2026.

Mon 21/907:00
BKK
-
IAD
2 stops33h 25m
United Airlines
Tue 20/1012:15
IAD
-
BKK
1 stop29h 20m
United Airlines
Deal found 15/6฿28,734
Mon 21/907:00
BKK
-
IAD
2 stops33h 25m
United Airlines
Mon 5/1008:20
IAD
-
BKK
2 stops33h 15m
United Airlines
Deal found 15/6฿28,799
Mon 2/1116:55
BKK
-
IAD
3 stops34h 55m
United Airlines
Mon 30/1122:10
IAD
-
BKK
2 stops43h 00m
United Airlines
Deal found 15/6฿29,092
Tue 29/915:45
BKK
-
IAD
3 stops38h 41m
United Airlines
Tue 10/1113:05
IAD
-
BKK
2 stops28h 05m
United Airlines
Deal found 16/6฿29,223
Tue 22/907:00
BKK
-
DCA
2 stops36h 55m
United Airlines
Sat 26/916:24
DCA
-
BKK
3 stops30h 11m
United Airlines
Deal found 14/6฿29,451
Thu 24/907:00
BKK
-
IAD
2 stops33h 17m
United Airlines
Sat 26/908:25
IAD
-
BKK
2 stops38h 10m
United Airlines
Deal found 13/6฿29,451
Sun 20/915:25
BKK
-
IAD
1 stop35h 20m
ซาอุเดียแอร์ไลน์
Sun 27/918:50
IAD
-
BKK
1 stop31h 55m
ซาอุเดียแอร์ไลน์
Deal found 15/6฿29,646
Sun 20/915:45
BKK
-
IAD
3 stops43h 47m
United Airlines
Sun 27/922:13
IAD
-
BKK
2 stops48h 22m
United Airlines
Deal found 15/6฿29,711
Sat 3/1015:45
BKK
-
IAD
3 stops48h 32m
United Airlines
Mon 2/1110:08
IAD
-
BKK
2 stops31h 02m
United Airlines
Deal found 16/6฿29,907
Sun 4/1007:00
BKK
-
IAD
2 stops33h 17m
United Airlines
Sat 31/1022:10
IAD
-
BKK
2 stops44h 00m
United Airlines
Deal found 16/6฿30,330
Mon 15/609:35
BKK
-
IAD
1 stop41h 15m
United Airlines
Sun 21/606:33
IAD
-
BKK
2 stops35h 02m
United Airlines
Deal found 14/6฿30,526
Tue 16/609:35
BKK
-
DCA
2 stops47h 18m
United Airlines
Sun 21/609:30
DCA
-
BKK
2 stops32h 05m
United Airlines
Deal found 14/6฿30,721

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 18 June 2026.

Return from

฿28,734

One-way from

฿19,905

Popular in

April

Cheapest in

October

Average price

฿32,155
United Airlines
  • United Airlines
  • 21/9-20/10
  • 3 total stops
  • 62h 45m total
  • Bangkok to Washington, D.C.
Search Deals
27/10
  • 27/10
  • 2 total stops
  • 29h 25m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (฿8,478 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,142 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 18 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 - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 20/9

07:00-22:59

2 stops26h 59m

Washington, D.C. Dulles Intl

Sun 27/9

12:58-09:35

2 stops33h 37m

฿31,145

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 7/12

07:10-20:33

2 stops25h 23m

Washington, D.C. Dulles Intl

Wed 13/1

10:08-05:10

2 stops31h 02m

฿31,177

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 8/7

09:35-23:19

2 stops48h 44m

Washington, D.C. Dulles Intl

Wed 15/7

22:21-23:55

2 stops38h 34m

฿31,405

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 7/9

15:45-11:52

3 stops31h 07m

Washington, D.C. Dulles Intl

Mon 21/9

20:33-09:35

2 stops26h 02m

฿36,390

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 6/12

00:55-09:50

1 stop20h 55m

Washington, D.C. Dulles Intl

Thu 7/1

11:50-21:30

1 stop45h 40m

฿36,553

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 22/9

15:45-14:23

3 stops57h 38m

Washington, D.C. Reagan-National

Sat 26/9

19:00-09:35

2 stops27h 35m

฿36,650

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 8/7

07:00-21:53

2 stops25h 53m

Washington, D.C. Reagan-National

Wed 15/7

11:57-09:35

3 stops34h 38m

฿36,716

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 7/9

23:30-16:40

2 stops28h 10m

Washington, D.C. Reagan-National

Mon 21/9

06:59-21:45

2 stops27h 46m

฿37,107

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 26/7

23:40-14:35

1 stop25h 55m

Washington, D.C. Dulles Intl

Sat 8/8

22:20-14:00

1 stop28h 40m

฿39,159

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Mon 7/9

13:20-06:35

2 stops28h 15m

Baltimore/Washington

Mon 21/9

19:15-12:10

2 stops29h 55m

฿42,645

Flights are sorted by cheapest return flights first.

Deals found on 14/6

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.

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

On average, a flight from Bangkok to Washington, D.C. takes 29 hours 33 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 ฿31,493
ANA
ANA
From ฿34,417
Korean Air
Korean Air
From ฿32,848
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿32,497

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 18 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
9,859 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Comfort

7.3

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
9,859 reviews
United Airlines
7.4
Good
9,859 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Comfort

7.3

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 ฿2,685, while return flights cost around ฿49,102.

  • 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 (24 hours 0 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.?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Washington, D.C.. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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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Users can book flights with no change fees policies with our dedicated filters. Book flights to Washington, D.C. flexibly with Cheapflights today.

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