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฿20,014+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
5 Jul — 12 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 5 June 2026.

Thu 11/609:35
BKK
-
IAD
1 stop41h 15m
United Airlines
Thu 18/608:29
IAD
-
BKK
2 stops28h 26m
United Airlines
Deal found 5/6฿30,691
Wed 10/607:00
BKK
-
IAD
2 stops25h 00m
United Airlines
Wed 9/912:15
IAD
-
BKK
1 stop29h 20m
United Airlines
Deal found 5/6฿30,887
Mon 28/909:35
BKK
-
DCA
2 stops58h 49m
United Airlines
Wed 30/911:30
DCA
-
BKK
3 stops35h 05m
United Airlines
Deal found 3/6฿30,919
Fri 10/709:35
BKK
-
IAD
2 stops56h 47m
United Airlines
Fri 25/917:42
IAD
-
BKK
2 stops28h 53m
United Airlines
Deal found 4/6฿31,115
Mon 28/907:00
BKK
-
IAD
2 stops25h 22m
United Airlines
Wed 30/909:30
IAD
-
BKK
2 stops37h 05m
United Airlines
Deal found 3/6฿31,148
Tue 23/609:35
BKK
-
IAD
2 stops48h 44m
United Airlines
Fri 24/717:48
IAD
-
BKK
2 stops28h 47m
United Airlines
Deal found 4/6฿31,181
Thu 25/609:35
BKK
-
IAD
2 stops50h 10m
United Airlines
Thu 2/708:29
IAD
-
BKK
2 stops28h 26m
United Airlines
Deal found 4/6฿31,213
Tue 15/907:00
BKK
-
DCA
2 stops24h 09m
United Airlines
Sun 27/911:30
DCA
-
BKK
3 stops35h 05m
United Airlines
Deal found 31/5฿36,111
Tue 7/715:45
BKK
-
DCA
3 stops31h 14m
United Airlines
Mon 27/711:57
DCA
-
BKK
3 stops34h 38m
United Airlines
Deal found 1/6฿36,307
Tue 15/909:00
BKK
-
BWI
2 stops43h 15m
Multiple Airlines
Sun 27/921:35
BWI
-
BKK
2 stops33h 10m
Multiple Airlines
Deal found 31/5฿36,633
Wed 10/616:45
BKK
-
BWI
2 stops23h 56m
Multiple Airlines
Wed 9/918:18
BWI
-
BKK
2 stops29h 52m
Multiple Airlines
Deal found 3/6฿37,221
Tue 1/916:45
BKK
-
BWI
2 stops24h 45m
Multiple Airlines
Fri 2/1018:18
BWI
-
BKK
2 stops29h 37m
Multiple Airlines
Deal found 1/6฿37,645

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 June 2026.

Return from

฿30,919

One-way from

฿20,014

Popular in

April

Cheapest in

October

Average price

฿35,588
United Airlines
  • United Airlines
  • 28/9-30/9
  • 5 total stops
  • 93h 54m total
  • Bangkok to Washington, D.C.
Search Deals
1/9
  • 1/9
  • 2 total stops
  • 24h 00m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (฿8,094 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,106 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 5 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

Fri 10/7

09:35-07:22

2 stops56h 47m

Washington, D.C. Dulles Intl

Fri 25/9

17:42-09:35

2 stops28h 53m

฿31,115

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 3/7

07:00-23:19

2 stops27h 19m

Washington, D.C. Dulles Intl

Sat 18/7

13:10-09:35

2 stops33h 25m

฿31,279

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 3/7

07:00-21:00

2 stops25h 00m

Washington, D.C. Dulles Intl

Sat 25/7

15:15-09:35

2 stops31h 20m

฿31,442

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 15/6

09:35-11:52

2 stops61h 17m

Washington, D.C. Dulles Intl

Mon 20/7

22:20-09:35

2 stops48h 15m

฿35,621

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 28/9

09:35-09:15

2 stops58h 40m

Washington, D.C. Reagan-National

Wed 30/9

11:30-09:35

3 stops35h 05m

฿35,752

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 15/9

09:35-15:35

1 stop41h 00m

Washington, D.C. Dulles Intl

Sun 27/9

17:20-09:35

3 stops29h 15m

฿35,850

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 15/9

07:00-20:09

2 stops24h 09m

Washington, D.C. Reagan-National

Sun 27/9

11:30-09:35

3 stops35h 05m

฿36,111

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 7/7

15:45-11:59

3 stops31h 14m

Washington, D.C. Reagan-National

Mon 27/7

11:57-09:35

3 stops34h 38m

฿36,307

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 7/7

15:45-11:52

3 stops31h 07m

Washington, D.C. Dulles Intl

Mon 27/7

08:15-04:35

2 stops33h 20m

฿36,307

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Tue 15/9

09:00-17:15

2 stops43h 15m

Baltimore/Washington

Sun 27/9

21:35-17:45

2 stops33h 10m

฿36,633

Flights are sorted by cheapest return flights first.

Deals found on 5/6

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 27 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 ฿31,563
Korean Air
Korean Air
From ฿32,921
ANA
ANA
From ฿34,493
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿32,569

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 17 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 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
9,775 reviews
Check prices

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,775 reviews
United Airlines
7.4
Good
9,775 reviews
Check prices

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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 ฿2,691, while return flights cost around ฿49,210.

  • 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 35 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.?

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

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