฿14,906+ Cheap flights to Washington, D.C.

— WAS
29 Nov — 6 Dec1
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.

Sat 19/1215:20 -
1 stop35h 25m
Fri 8/117:50 -
1 stop31h 50m
Deal found 28/10฿28,294
Sat 19/1215:20 -
1 stop35h 25m
Fri 15/117:50 -
1 stop31h 50m
Deal found 26/10฿29,171
Tue 10/1119:55 -
1 stop25h 05m
Wed 25/1118:20 -
2 stops25h 50m
Deal found 25/10฿32,105
Tue 10/1122:55 -
1 stop33h 40m
Wed 25/1123:35 -
1 stop33h 50m
Deal found 25/10฿32,611
Sat 19/1220:50 -
1 stop24h 10m
Fri 15/114:25 -
1 stop21h 15m
Deal found 28/10฿34,364
Tue 3/1102:25 -
1 stop42h 35m
Wed 18/1114:25 -
1 stop21h 15m
Deal found 27/10฿34,938
Wed 28/1009:10 -
2 stops39h 25m
Fri 30/1022:10 -
2 stops50h 20m
Deal found 27/10฿35,073
Tue 10/1109:10 -
2 stops38h 42m
Wed 25/1122:10 -
2 stops49h 20m
Deal found 25/10฿35,106

Find flight deals to Washington, D.C.

Return from

฿26,372

One-way from

฿14,906

Popular in

April

Cheapest in

January

Average price

฿28,935
AIR PREMIA
  • AIR PREMIA
  • 4/3-24/3
  • 2 total stops
  • 67h 30m total
  • Bangkok to Washington, D.C.
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AIR PREMIA
  • AIR PREMIA
  • 4/2-31/12
  • 1 total stop
  • 33h 40m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (฿9,599 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (฿2,091 potential savings vs. average return price).
Search Deals
Average for return flights in October 2026
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Cheapflights Fare Finder

 
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 Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Tue 15/12

22:55-19:31

3 stops56h 36m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿19,728

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Sat 5/12

23:55-16:15

2 stops52h 20m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿21,010
Fastest return journey

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Sat 13/3

14:05-05:31

2 stops27h 26m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,291

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Tue 1/12

19:10-07:25

2 stops48h 15m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,966

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Wed 23/12

10:20-11:45

1 stop37h 25m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿23,674

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Fri 22/1

15:20-13:50

1 stop34h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿23,843

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Sat 19/12

09:00-07:25

2 stops34h 25m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿25,967

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Tue 1/12

10:55-11:49

2 stops36h 54m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿28,024

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Fri 6/11

16:55-11:28

3 stops30h 33m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿30,014

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Thu 21/1

16:55-11:42

3 stops30h 47m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿30,048

Flights are sorted by cheapest return flights first.

Deals found on 25/10

Showing 1-10 of 18 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

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 5 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 Korean Air, United Airlines and เอทิฮัดแอร์เวย์.

Korean Air
Korean Air
From ฿34,102
United Airlines
United Airlines
From ฿27,293
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿31,178
Qatar Airways
Qatar Airways
From ฿36,780

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

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

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 89 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.

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, ANA 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 ฿2,779, while return flights cost around ฿50,829.

  • Where does the fastest flight to Washington, D.C. depart from?

    For those looking to save time traveling to Washington, D.C., Chiang Mai offers the quickest one-way flight (21 hours 30 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

Airports serving Washington, D.C.

Flights to Reagan-National
Flights to Dulles Intl
Flights from Reagan-National
Flights from Dulles Intl

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