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฿16,408+ 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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
2 Apr — 9 Apr1
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 3 March 2026.

Thu 16/401:30
BKK
-
IAD
1 stop29h 00m
Air China
Fri 24/423:00
IAD
-
BKK
1 stop38h 10m
Air China
Deal found 3/3฿23,687
Thu 26/301:30
BKK
-
IAD
1 stop29h 00m
Air China
Fri 3/423:00
IAD
-
BKK
1 stop32h 20m
Air China
Deal found 27/2฿23,749
Mon 9/319:30
BKK
-
IAD
1 stop35h 00m
Air China
Tue 7/423:00
IAD
-
BKK
1 stop38h 10m
Air China
Deal found 1/3฿23,938
Mon 16/319:30
BKK
-
IAD
1 stop35h 00m
Air China
Fri 3/423:00
IAD
-
BKK
1 stop32h 20m
Air China
Deal found 2/3฿25,318
Thu 16/419:35
BKK
-
IAD
1 stop34h 55m
Multiple Airlines
Wed 29/415:10
IAD
-
BKK
1 stop21h 40m
Multiple Airlines
Deal found 3/3฿27,671
Mon 20/419:35
BKK
-
IAD
1 stop34h 55m
Multiple Airlines
Wed 6/515:10
IAD
-
BKK
1 stop28h 35m
Multiple Airlines
Deal found 2/3฿27,922
Thu 16/419:35
BKK
-
IAD
1 stop34h 55m
Multiple Airlines
Thu 23/415:10
IAD
-
BKK
1 stop21h 40m
Multiple Airlines
Deal found 2/3฿27,953
Wed 6/516:45
BKK
-
DCA
2 stops38h 15m
EVA Air
Wed 2/909:59
DCA
-
BKK
2 stops38h 21m
EVA Air
Deal found 27/2฿31,373
Tue 14/401:35
BKK
-
DCA
2 stops29h 25m
EVA Air
Tue 28/418:59
DCA
-
BKK
2 stops28h 26m
EVA Air
Deal found 26/2฿32,001
Thu 23/415:10
BKK
-
DCA
2 stops39h 50m
Multiple Airlines
Wed 6/518:59
DCA
-
BKK
2 stops28h 56m
Multiple Airlines
Deal found 28/2฿32,346
Mon 9/312:45
BKK
-
DCA
2 stops40h 14m
EVA Air
Tue 7/418:41
DCA
-
BKK
2 stops28h 44m
EVA Air
Deal found 28/2฿32,628
Sat 6/616:45
BKK
-
BWI
2 stops24h 43m
Multiple Airlines
Sat 11/718:05
BWI
-
BKK
2 stops30h 15m
Multiple Airlines
Deal found 27/2฿33,130

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 3 March 2026.

Return from

฿23,687

One-way from

฿16,408

Popular in

August

Cheapest in

October

Average price

฿43,075
Air China
  • Air China
  • 16/4-24/4
  • 2 total stops
  • 67h 10m total
  • Bangkok to Washington, D.C.
Search Deals
19/5
  • 19/5
  • 3 total stops
  • 46h 14m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿552 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿991 potential savings vs. average return price).
Search Deals
Average for return flights in March 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 3 March 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

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 14/4

01:35-20:00

2 stops29h 25m

Washington, D.C. Reagan-National

Tue 28/4

18:59-10:25

2 stops28h 26m

฿32,001

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 8/5

09:50-23:44

2 stops24h 54m

Washington, D.C. Reagan-National

Sat 18/7

07:40-23:35

2 stops28h 55m

฿33,820

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 1/4

21:40-23:49

2 stops37h 09m

Washington, D.C. Dulles Intl

Mon 6/4

19:29-21:45

2 stops39h 16m

฿33,852

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 4/8

07:00-11:55

2 stops39h 55m

Washington, D.C. Dulles Intl

Tue 29/9

12:35-04:35

1 stop29h 00m

฿34,040

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 15/4

15:45-11:58

3 stops31h 13m

Washington, D.C. Reagan-National

Tue 28/4

17:59-09:35

2 stops28h 36m

฿34,071

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 28/7

09:35-07:22

2 stops32h 47m

Washington, D.C. Dulles Intl

Tue 29/9

13:05-09:35

3 stops33h 30m

฿35,044

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 30/7

09:35-07:22

2 stops32h 47m

Washington, D.C. Dulles Intl

Tue 29/9

13:05-09:35

3 stops33h 30m

฿35,044

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 9/7

07:00-22:15

2 stops26h 15m

Washington, D.C. Reagan-National

Tue 28/7

18:10-09:35

3 stops28h 25m

฿35,138

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Tue 14/4

09:50-23:26

2 stops24h 36m

Baltimore/Washington

Tue 21/4

07:00-21:45

2 stops27h 45m

฿36,173

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Wed 29/4

16:45-09:45

2 stops52h 00m

Washington, D.C. Dulles Intl

Mon 8/6

13:20-15:50

1 stop39h 30m

฿37,020

Flights are sorted by cheapest return flights first.

Deals found on 27/2

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 26 hours 1 minute. 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 ฿30,443
Korean Air
Korean Air
From ฿31,725
ANA
ANA
From ฿33,240
Qatar Airways
Qatar Airways
From ฿35,264

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).

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 3 March 2026.
Read reviews from past customers who have flown 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.
Qatar Airways
7.4
Good
3,745 reviews
Check prices

Comfort

7.4

Crew

7.9

Overall

7.4

Food

7.3

Boarding

7.5

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Mohamed,Jul 2025

BKK - DOH

boarding process was smooth, Crew was excellent. i booked Comfort+ the seat was good but very old and the entertainment screen get stuck and difficult to control again maybe because its old device brought from other old airplanes not belong to Qatar Airways new fleets. Food is not at all matching the hype of Qatarairways, what i had in Emirates or Etihad economy class is way better.
Qatar Airways
7.4
Good
3,745 reviews
Qatar Airways
7.4
Good
3,745 reviews
Check prices

Comfort

7.4

Crew

7.9

Overall

7.4

Food

7.3

Boarding

7.5

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Mohamed,Jul 2025

BKK - DOH

boarding process was smooth, Crew was excellent. i booked Comfort+ the seat was good but very old and the entertainment screen get stuck and difficult to control again maybe because its old device brought from other old airplanes not belong to Qatar Airways new fleets. Food is not at all matching the hype of Qatarairways, what i had in Emirates or Etihad economy class is way better.

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.?

    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 ฿2,933, while return flights cost around ฿47,286.

  • 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 50 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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