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฿19,976+ 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 16/6. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
22 Jun — 29 Jun1
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 23 May 2026.

Sun 14/607:00
BKK
-
DCA
2 stops35h 46m
United Airlines
Wed 5/811:57
DCA
-
BKK
3 stops34h 38m
United Airlines
Deal found 21/5฿31,498
Sun 14/607:00
BKK
-
IAD
2 stops44h 32m
United Airlines
Wed 5/807:00
IAD
-
BKK
2 stops39h 35m
United Airlines
Deal found 21/5฿31,498
Tue 25/809:35
BKK
-
IAD
1 stop41h 15m
United Airlines
Tue 8/908:35
IAD
-
BKK
2 stops28h 20m
United Airlines
Deal found 21/5฿31,726
Wed 9/909:35
BKK
-
DCA
2 stops58h 20m
United Airlines
Wed 21/1006:00
DCA
-
BKK
2 stops35h 35m
United Airlines
Deal found 23/5฿31,791
Wed 16/909:35
BKK
-
DCA
2 stops61h 24m
United Airlines
Sun 20/906:30
DCA
-
BKK
2 stops35h 05m
United Airlines
Deal found 21/5฿31,824
Mon 5/1009:35
BKK
-
IAD
2 stops60h 46m
United Airlines
Mon 9/1106:30
IAD
-
BKK
2 stops40h 55m
United Airlines
Deal found 19/5฿31,824
Wed 16/907:00
BKK
-
IAD
2 stops44h 35m
United Airlines
Sun 20/913:03
IAD
-
BKK
2 stops33h 32m
United Airlines
Deal found 19/5฿31,889
Tue 20/1015:45
BKK
-
DCA
3 stops31h 38m
United Airlines
Sun 25/1006:00
DCA
-
BKK
2 stops36h 10m
United Airlines
Deal found 23/5฿32,150
Wed 16/1209:10
BKK
-
IAD
2 stops43h 04m
United Airlines
Mon 4/111:10
IAD
-
BKK
2 stops60h 15m
United Airlines
Deal found 23/5฿32,379
Wed 30/915:45
BKK
-
IAD
3 stops30h 36m
United Airlines
Thu 1/1016:10
IAD
-
BKK
2 stops30h 25m
United Airlines
Deal found 20/5฿32,444
Sat 17/1015:25
BKK
-
IAD
1 stop35h 20m
ซาอุเดียแอร์ไลน์
Fri 23/1018:50
IAD
-
BKK
1 stop31h 55m
ซาอุเดียแอร์ไลน์
Deal found 23/5฿33,782
Tue 9/607:00
BKK
-
IAD
2 stops25h 00m
ANA
Tue 7/722:21
IAD
-
BKK
2 stops48h 14m
ANA
Deal found 23/5฿33,978

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 23 May 2026.

Return from

฿31,498

One-way from

฿19,976

Popular in

April

Cheapest in

October

Average price

฿41,681
United Airlines
  • United Airlines
  • 14/6-5/8
  • 5 total stops
  • 70h 24m total
  • Bangkok to Washington, D.C.
Search Deals
AIR PREMIA
  • AIR PREMIA
  • 16/6
  • 1 total stop
  • 23h 05m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (฿8,261 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,122 potential savings vs. average return price).
Search Deals
Average for return flights in May 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 23 May 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 - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 14/6

07:00-07:46

2 stops35h 46m

Washington, D.C. Reagan-National

Wed 5/8

11:57-09:35

3 stops34h 38m

฿31,498

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Sun 25/10

17:50-05:20

2 stops22h 30m

Baltimore/Washington

Thu 12/11

18:12-09:50

2 stops27h 38m

฿37,177

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 25/10

14:05-05:40

2 stops26h 35m

Washington, D.C. Dulles Intl

Thu 12/11

17:14-09:50

2 stops28h 36m

฿37,177

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 22/7

09:35-14:12

2 stops39h 37m

Washington, D.C. Dulles Intl

Wed 19/8

12:50-04:35

1 stop28h 45m

฿37,308

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 4/6

12:50-16:45

1 stop38h 55m

Washington, D.C. Dulles Intl

Wed 10/6

22:35-09:50

2 stops24h 15m

฿37,895

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 9/6

02:35-20:48

2 stops29h 13m

Washington, D.C. Reagan-National

Wed 9/9

10:00-21:45

2 stops24h 45m

฿39,135
Fastest return journey

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 6/7

02:30-15:40

1 stop24h 10m

Washington, D.C. Dulles Intl

Tue 14/7

11:05-19:25

1 stop21h 20m

฿39,168

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 25/10

09:50-10:50

1 stop36h 00m

Washington, D.C. Dulles Intl

Thu 12/11

11:50-13:25

1 stop37h 35m

฿39,429

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 25/10

09:50-23:18

2 stops24h 28m

Washington, D.C. Reagan-National

Thu 12/11

07:40-21:30

2 stops25h 50m

฿39,527

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 16/9

15:45-13:04

3 stops32h 19m

Washington, D.C. Reagan-National

Sun 20/9

16:20-09:35

3 stops30h 15m

฿40,343

Flights are sorted by cheapest return flights first.

Deals found on 18/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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 27 hours 51 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 ฿31,553
Korean Air
Korean Air
From ฿33,007
ANA
ANA
From ฿34,482
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿32,559

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 23 May 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
9,751 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

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
9,751 reviews
United Airlines
7.4
Good
9,751 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

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.?

    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 ฿3,051, while return flights cost around ฿49,195.

  • 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 28 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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