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฿16,373+ 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
11 Mar — 18 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 9 February 2026.

Mon 8/613:25
BKK
-
DCA
2 stops38h 04m
Philippine Airlines
Fri 12/608:40
DCA
-
BKK
2 stops40h 30m
Philippine Airlines
Deal found 6/2฿25,095
Wed 11/222:05
BKK
-
IAD
2 stops33h 15m
IndiGo
Mon 23/221:15
IAD
-
BKK
2 stops35h 50m
IndiGo
Deal found 8/2฿28,402
Sat 7/212:00
BKK
-
IAD
2 stops43h 20m
IndiGo
Sun 15/221:15
IAD
-
BKK
2 stops35h 50m
IndiGo
Deal found 6/2฿29,661
Mon 27/413:40
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Mon 3/813:20
IAD
-
DMK
1 stop39h 10m
Multiple Airlines
Deal found 8/2฿29,787
Sun 26/413:40
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Mon 3/813:20
IAD
-
DMK
1 stop39h 10m
Multiple Airlines
Deal found 8/2฿29,818
Mon 7/915:20
BKK
-
IAD
1 stop35h 25m
ซาอุเดียแอร์ไลน์
Sat 19/918:50
IAD
-
BKK
1 stop42h 15m
ซาอุเดียแอร์ไลน์
Deal found 8/2฿29,881
Tue 1/922:45
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Sun 13/913:20
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 8/2฿30,291
Tue 10/317:15
BKK
-
DCA
2 stops35h 44m
Multiple Airlines
Tue 12/509:59
DCA
-
BKK
2 stops37h 26m
Multiple Airlines
Deal found 8/2฿31,046
Wed 27/501:50
BKK
-
IAD
1 stop24h 55m
ซาอุเดียแอร์ไลน์
Fri 12/618:50
IAD
-
BKK
1 stop31h 55m
ซาอุเดียแอร์ไลน์
Deal found 7/2฿31,204
Sun 10/522:45
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Sun 13/913:20
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 8/2฿31,330
Thu 21/522:45
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Fri 5/613:20
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 7/2฿31,393
Sun 19/422:50
DMK
-
IAD
2 stops45h 55m
Multiple Airlines
Wed 16/913:20
IAD
-
DMK
1 stop39h 10m
Multiple Airlines
Deal found 8/2฿31,456

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 February 2026.

Return from

฿25,095

One-way from

฿16,373

Popular in

August

Cheapest in

October

Average price

฿33,439
Philippine Airlines
  • Philippine Airlines
  • 8/6-12/6
  • 4 total stops
  • 78h 34m 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 (฿700 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿908 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 9 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

Mon 27/4

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Mon 3/8

13:20-15:30

1 stop39h 10m

฿29,787

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sun 26/4

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Mon 3/8

13:20-15:30

1 stop39h 10m

฿29,818

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sun 19/4

22:50-09:45

2 stops45h 55m

Washington, D.C. Dulles Intl

Wed 16/9

13:20-15:30

1 stop39h 10m

฿31,456

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 21/4

01:35-17:59

2 stops27h 24m

Washington, D.C. Reagan-National

Sun 24/5

09:59-10:25

2 stops37h 26m

฿31,991

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 5/5

16:45-20:00

2 stops38h 15m

Washington, D.C. Reagan-National

Tue 28/7

18:59-10:50

2 stops28h 51m

฿32,211

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 12/5

01:35-20:06

2 stops29h 31m

Washington, D.C. Reagan-National

Wed 27/5

18:59-11:10

2 stops29h 11m

฿33,093

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 3/3

16:55-10:55

3 stops30h 00m

Washington, D.C. Reagan-National

Tue 12/5

11:55-09:35

3 stops34h 40m

฿33,219

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 3/3

16:55-21:18

3 stops40h 23m

Washington, D.C. Dulles Intl

Tue 12/5

18:55-09:35

2 stops27h 40m

฿33,219

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 10/3

16:55-08:51

3 stops26h 56m

Washington, D.C. Reagan-National

Tue 12/5

11:55-09:35

3 stops34h 40m

฿33,502

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 19/4

15:45-10:59

3 stops30h 14m

Washington, D.C. Reagan-National

Wed 16/9

11:30-09:35

3 stops35h 05m

฿33,502

Flights are sorted by cheapest return flights first.

Deals found on 8/2

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 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, Korean Air and ANA.

United Airlines
United Airlines
From ฿30,554
Korean Air
Korean Air
From ฿31,841
ANA
ANA
From ฿33,361
Qatar Airways
Qatar Airways
From ฿35,392

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 9 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
1,189 reviews
Check prices

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

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
1,189 reviews
Korean Air
8.4
Very Good
1,189 reviews
Check prices

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

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
3,729 reviews
Korean Air
8.4
Very Good
1,189 reviews
Check prices

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

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 ฿2,943, while return flights cost around ฿47,458.

  • 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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