Find flights
Airlines

฿20,358+ 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 22/9. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
24 Jul — 31 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 24 June 2026.

Wed 18/1109:10
BKK
-
IAD
1 stop36h 00m
United Airlines
Tue 24/1122:34
IAD
-
BKK
2 stops37h 46m
United Airlines
Deal found 19/6฿29,145
Tue 22/915:45
BKK
-
DCA
3 stops34h 21m
United Airlines
Sat 26/919:10
DCA
-
BKK
2 stops46h 25m
United Airlines
Deal found 19/6฿30,139
Thu 8/1015:45
BKK
-
IAD
3 stops36h 50m
United Airlines
Sat 24/1017:45
IAD
-
BKK
2 stops30h 45m
United Airlines
Deal found 19/6฿30,272
Thu 10/909:35
BKK
-
DCA
2 stops47h 24m
United Airlines
Sun 13/906:30
DCA
-
BKK
2 stops35h 05m
United Airlines
Deal found 23/6฿31,300
Wed 24/615:45
BKK
-
IAD
3 stops42h 34m
United Airlines
Tue 7/712:50
IAD
-
BKK
1 stop28h 45m
United Airlines
Deal found 23/6฿31,598
Wed 1/709:35
BKK
-
IAD
2 stops56h 47m
United Airlines
Wed 29/707:00
IAD
-
BKK
2 stops39h 35m
United Airlines
Deal found 19/6฿31,665
Wed 1/707:00
BKK
-
IAD
2 stops27h 19m
United Airlines
Tue 7/712:50
IAD
-
BKK
1 stop28h 45m
United Airlines
Deal found 22/6฿31,764
Fri 3/707:00
BKK
-
IAD
2 stops25h 00m
United Airlines
Sat 25/715:15
IAD
-
BKK
2 stops31h 20m
United Airlines
Deal found 23/6฿31,830
Wed 8/707:00
BKK
-
IAD
2 stops27h 19m
United Airlines
Wed 29/713:10
IAD
-
BKK
2 stops33h 25m
United Airlines
Deal found 22/6฿31,897
Tue 25/807:00
BKK
-
IAD
2 stops25h 22m
United Airlines
Fri 28/810:10
IAD
-
BKK
3 stops36h 25m
United Airlines
Deal found 23/6฿32,858
Tue 20/1007:00
BKK
-
DCA
2 stops25h 59m
ANA
Sun 25/1008:30
DCA
-
BKK
2 stops33h 40m
ANA
Deal found 21/6฿33,521
Sun 25/1009:50
BKK
-
IAD
1 stop36h 00m
Korean Air
Sun 1/1111:50
IAD
-
BKK
1 stop45h 40m
Korean Air
Deal found 23/6฿34,814

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 24 June 2026.

Return from

฿29,145

One-way from

฿20,358

Popular in

April

Cheapest in

October

Average price

฿32,726
United Airlines
  • United Airlines
  • 18/11-24/11
  • 3 total stops
  • 73h 46m total
  • Bangkok to Washington, D.C.
Search Deals
แอร์แคนาดา
  • แอร์แคนาดา
  • 22/9
  • 2 total stops
  • 25h 50m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (฿8,219 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,139 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 24 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

Wed 18/11

09:10-09:10

1 stop36h 00m

Washington, D.C. Dulles Intl

Tue 24/11

22:34-00:20

2 stops37h 46m

฿29,145

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 22/9

15:45-15:06

3 stops34h 21m

Washington, D.C. Reagan-National

Sat 26/9

19:10-04:35

2 stops46h 25m

฿30,139

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 10/9

07:00-21:59

2 stops25h 59m

Washington, D.C. Reagan-National

Sun 13/9

13:04-09:35

3 stops33h 31m

฿31,598

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 20/10

21:40-11:05

1 stop24h 25m

Washington, D.C. Dulles Intl

Sun 25/10

12:50-00:45

1 stop24h 55m

฿35,312

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 20/10

15:45-11:59

3 stops31h 14m

Washington, D.C. Reagan-National

Sun 25/10

08:30-05:10

2 stops33h 40m

฿37,334

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 17/7

09:50-00:08

2 stops25h 18m

Washington, D.C. Dulles Intl

Fri 24/7

07:15-23:35

2 stops29h 20m

฿37,533
Fastest return journey

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 31/8

09:50-23:39

2 stops24h 49m

Washington, D.C. Dulles Intl

Wed 30/9

13:15-23:35

1 stop23h 20m

฿38,428

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 28/7

02:35-00:08

2 stops32h 33m

Washington, D.C. Dulles Intl

Thu 27/8

10:16-13:35

2 stops40h 19m

฿39,589

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 18/7

09:35-23:19

2 stops48h 44m

Washington, D.C. Dulles Intl

Sat 25/7

09:37-09:35

2 stops36h 58m

฿40,153

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 20/8

21:40-14:53

2 stops28h 13m

Washington, D.C. Reagan-National

Sat 29/8

08:59-23:35

2 stops27h 36m

฿40,948

Flights are sorted by cheapest return flights first.

Deals found on 22/6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
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 26 hours 34 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 ฿32,052
Korean Air
Korean Air
From ฿33,431
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿33,074
ANA
ANA
From ฿36,298

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 24 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
9,881 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
9,881 reviews
United Airlines
7.4
Good
9,881 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

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 ฿49,974.

  • 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 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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!

Can Cheapflights find flights to Washington, D.C. with no change fees?

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

Can Cheapflights notify me if prices for flights to Washington, D.C. become cheaper?

Yes! Start tracking prices for Washington, D.C. flights today and get alerted when prices change. To subscribe and begin receiving alerts, click the bell icon next to the flight deals above and provide your email address.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.