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฿15,886+ 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
22 Mar — 29 Mar1
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 20 February 2026.

Thu 5/319:30
BKK
-
IAD
1 stop35h 00m
Air China
Fri 6/322:00
IAD
-
BKK
1 stop38h 10m
Air China
Deal found 19/2฿24,514
Thu 3/913:25
BKK
-
DCA
2 stops37h 57m
Philippine Airlines
Fri 11/917:30
DCA
-
BKK
2 stops38h 00m
Philippine Airlines
Deal found 19/2฿25,355
Thu 26/317:55
BKK
-
IAD
2 stops36h 35m
Multiple Airlines
Sun 29/315:10
IAD
-
BKK
1 stop21h 40m
Multiple Airlines
Deal found 19/2฿29,249
Thu 5/301:30
BKK
-
IAD
1 stop29h 00m
Multiple Airlines
Mon 9/315:35
IAD
-
BKK
1 stop28h 35m
Multiple Airlines
Deal found 19/2฿29,529
Thu 5/319:30
BKK
-
IAD
1 stop35h 00m
Multiple Airlines
Sun 3/515:10
IAD
-
BKK
1 stop21h 40m
Multiple Airlines
Deal found 16/2฿29,560
Mon 9/319:30
BKK
-
IAD
1 stop35h 00m
Multiple Airlines
Tue 17/315:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 20/2฿29,591
Wed 6/513:40
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Sun 6/913:20
IAD
-
DMK
1 stop39h 30m
Multiple Airlines
Deal found 18/2฿29,778
Mon 4/513:40
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Sun 6/913:20
IAD
-
DMK
1 stop39h 30m
Multiple Airlines
Deal found 18/2฿29,809
Wed 6/513:40
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Mon 7/913:20
IAD
-
DMK
1 stop39h 30m
Multiple Airlines
Deal found 18/2฿29,841
Tue 1/913:25
BKK
-
BWI
2 stops27h 56m
Multiple Airlines
Wed 9/907:51
BWI
-
BKK
2 stops41h 19m
Multiple Airlines
Deal found 19/2฿29,872
Mon 4/513:40
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Wed 9/913:20
IAD
-
DMK
1 stop39h 30m
Multiple Airlines
Deal found 18/2฿29,872
Thu 19/319:30
BKK
-
IAD
1 stop35h 00m
Multiple Airlines
Wed 25/315:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 19/2฿29,903

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 20 February 2026.

Return from

฿24,514

One-way from

฿15,886

Popular in

August

Cheapest in

October

Average price

฿35,354
Air China
  • Air China
  • 5/3-6/3
  • 2 total stops
  • 73h 10m total
  • Bangkok to Washington, D.C.
Search Deals
9/3
  • 9/3
  • 3 total stops
  • 48h 14m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿548 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿984 potential savings vs. average return price).
Search Deals
Average for return flights in February 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 20 February 2026.
Use the filters below to find and compare flights to Washington, D.C. that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Wed 6/5

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Sun 6/9

13:20-15:50

1 stop39h 30m

฿29,778

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Mon 4/5

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Sun 6/9

13:20-15:50

1 stop39h 30m

฿29,809

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Wed 6/5

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Wed 9/9

13:20-15:50

1 stop39h 30m

฿29,841

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Mon 4/5

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Mon 7/9

13:20-15:50

1 stop39h 30m

฿29,872

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Mon 4/5

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Wed 9/9

13:20-15:50

1 stop39h 30m

฿29,872

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 5/5

01:35-20:00

2 stops29h 25m

Washington, D.C. Reagan-National

Wed 9/9

09:59-11:20

2 stops38h 21m

฿30,588

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Tue 17/3

23:00-10:05

2 stops46h 05m

Washington, D.C. Dulles Intl

Wed 16/9

13:20-15:50

1 stop39h 30m

฿30,837

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 10/3

02:05-23:39

2 stops32h 34m

Washington, D.C. Reagan-National

Mon 16/3

06:05-00:45

2 stops31h 40m

฿30,993

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Tue 17/3

23:00-10:05

2 stops46h 05m

Washington, D.C. Dulles Intl

Sun 13/9

13:20-15:50

1 stop39h 30m

฿31,367

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Tue 19/5

16:45-06:28

2 stops24h 43m

Baltimore/Washington

Thu 3/9

19:10-10:50

2 stops28h 40m

฿31,959

Flights are sorted by cheapest return flights first.

Deals found on 17/2

Showing 1-10 of 60 results
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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 4 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 ANA.

United Airlines
United Airlines
From ฿30,225
Korean Air
Korean Air
From ฿31,499
ANA
ANA
From ฿33,002
Qatar Airways
Qatar Airways
From ฿35,012

What are the cheapest airlines that fly to Washington, D.C.?

The cheapest airlines flying from Bangkok to Washington, D.C. are ซาอุเดียแอร์ไลน์, United Airlines and เอทิฮัดแอร์เวย์.

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 20 February 2026.
Read reviews from past customers who have flown Korean Air and Qatar Airways to the United States. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,194 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very Good
1,194 reviews
Korean Air
8.4
Very Good
1,194 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Qatar Airways
7.4
Good
3,738 reviews
Korean Air
8.4
Very Good
1,194 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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, ซาอุเดียแอร์ไลน์ 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 ฿2,912, while return flights cost around ฿46,948.

  • 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 5 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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How does Cheapflights help users find flights to Washington, D.C.?

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Why should you use Cheapflights to find cheap flight tickets to Washington, D.C.?

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