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฿20,488+ 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 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
4 Aug — 11 Aug1
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 5 July 2026.

Wed 7/1007:00
BKK
-
IAD
2 stops25h 11m
ANA
Wed 14/1022:13
IAD
-
BKK
2 stops38h 42m
ANA
Deal found 30/6฿30,964
Fri 3/707:00
BKK
-
IAD
2 stops25h 00m
United Airlines
Sat 25/715:15
IAD
-
BKK
2 stops31h 20m
United Airlines
Deal found 30/6฿31,627
Thu 9/707:45
BKK
-
IAD
2 stops33h 37m
แอร์แคนาดา
Thu 23/709:55
IAD
-
BKK
2 stops25h 00m
แอร์แคนาดา
Deal found 2/7฿34,876
Wed 7/1009:50
BKK
-
IAD
1 stop36h 15m
Korean Air
Wed 14/1013:15
IAD
-
BKK
1 stop37h 20m
Korean Air
Deal found 30/6฿35,009
Sun 30/822:45
BKK
-
IAD
1 stop23h 05m
Multiple Airlines
Tue 8/915:10
IAD
-
BKK
1 stop34h 00m
Multiple Airlines
Deal found 5/7฿35,207
Thu 17/907:45
BKK
-
DCA
2 stops25h 05m
แอร์แคนาดา
Mon 21/909:40
DCA
-
BKK
2 stops32h 25m
แอร์แคนาดา
Deal found 2/7฿35,241
Thu 17/907:45
BKK
-
IAD
2 stops23h 40m
แอร์แคนาดา
Mon 21/908:29
IAD
-
BKK
1 stop33h 36m
แอร์แคนาดา
Deal found 2/7฿35,307
Thu 27/807:45
BKK
-
IAD
2 stops42h 16m
แอร์แคนาดา
Fri 28/822:19
IAD
-
BKK
2 stops43h 46m
แอร์แคนาดา
Deal found 1/7฿35,605
Thu 27/822:45
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Fri 28/813:20
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 5/7฿35,870
Tue 21/707:45
BKK
-
IAD
2 stops38h 27m
แอร์แคนาดา
Tue 28/722:14
IAD
-
BKK
2 stops43h 51m
แอร์แคนาดา
Deal found 3/7฿36,003
Thu 17/922:45
BKK
-
IAD
1 stop23h 05m
Multiple Airlines
Mon 21/915:10
IAD
-
BKK
1 stop28h 35m
Multiple Airlines
Deal found 2/7฿36,069
Wed 7/1009:35
BKK
-
IAD
2 stops30h 56m
United Airlines
Wed 14/1013:10
IAD
-
BKK
3 stops33h 25m
United Airlines
Deal found 30/6฿36,103

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 5 July 2026.

Return from

฿26,555

One-way from

฿20,488

Popular in

April

Cheapest in

October

Average price

฿35,970
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 22/10-7/11
  • 2 total stops
  • 66h 50m total
  • Bangkok to Washington, D.C.
Search Deals
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 30/10
  • 1 total stop
  • 34h 25m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (฿7,768 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,095 potential savings vs. average return price).
Search Deals
Average for return flights in July 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 5 July 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

Tue 29/9

09:35-22:30

2 stops47h 55m

Washington, D.C. Reagan-National

Sat 3/10

19:10-04:35

2 stops46h 25m

฿36,865

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 30/8

09:35-05:55

2 stops31h 20m

Washington, D.C. Dulles Intl

Tue 8/9

13:13-09:35

3 stops33h 22m

฿37,064

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 18/8

15:45-15:42

3 stops34h 57m

Washington, D.C. Reagan-National

Tue 25/8

13:04-04:35

3 stops52h 31m

฿37,395

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 30/7

09:35-15:50

1 stop41h 15m

Washington, D.C. Dulles Intl

Thu 6/8

13:15-09:35

3 stops33h 20m

฿37,429

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 6/10

09:35-15:35

1 stop41h 00m

Washington, D.C. Dulles Intl

Wed 14/10

14:47-09:35

2 stops31h 48m

฿37,462

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 8/10

15:45-22:30

3 stops41h 45m

Washington, D.C. Dulles Intl

Wed 14/10

18:37-09:35

2 stops27h 58m

฿37,959

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 9/10

15:45-16:01

3 stops35h 16m

Washington, D.C. Dulles Intl

Wed 14/10

18:37-09:35

2 stops27h 58m

฿37,959

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 16/7

09:35-15:50

1 stop41h 15m

Washington, D.C. Dulles Intl

Sun 19/7

15:39-09:35

3 stops30h 56m

฿38,158

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 2/8

09:35-15:50

1 stop41h 15m

Washington, D.C. Dulles Intl

Sun 9/8

15:39-09:35

3 stops30h 56m

฿38,390

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 17/9

07:45-21:50

2 stops25h 05m

Washington, D.C. Reagan-National

Mon 21/9

09:40-05:05

2 stops32h 25m

฿38,556

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 59 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 26 hours 45 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, Korean Air and เอทิฮัดแอร์เวย์.

United Airlines
United Airlines
From ฿27,124
Korean Air
Korean Air
From ฿33,427
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿33,069

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 90 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 5 July 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
9,933 reviews
Check prices

Overall

7.4

Food

6.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,933 reviews
United Airlines
7.4
Good
9,933 reviews
Check prices

Overall

7.4

Food

6.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 ฿2,732, while return flights cost around ฿49,967.

  • 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 45 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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