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฿17,714+ 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
12 May — 19 May1
1 adult

Flights to Washington, D.C. in 2025

Find the latest flights to Washington, D.C. in 2025, 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 7 May 2025.

Return from

฿29,992

One-way from

฿17,714

Popular in

August

Cheapest in

November

Average price

฿37,130
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 2/6-24/6
  • 3 total stops
  • 56h 50m total
  • Bangkok to Washington, D.C.
19/5
  • 19/5
  • 2 total stops
  • 46h 09m total
  • Bangkok to Washington, D.C.
Highest demand for flights based on searches. 8% potential increase in price (฿109,761 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (฿36,336 potential savings vs. average return price).
Average for return flights in May 2025

Find flight deals to Washington, D.C.

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 7 May 2025.

Mon 2/601:50BKK - IAD
1 stop24h 55mซาอุเดียแอร์ไลน์
Tue 24/618:50IAD - BKK
2 stops31h 55mซาอุเดียแอร์ไลน์
Deal found 6/5฿29,992
Thu 16/1007:00BKK - IAD
2 stops41h 49mUnited Airlines
Fri 24/1019:22IAD - BKK
2 stops28h 28mUnited Airlines
Deal found 7/5฿34,969
Thu 16/1007:00BKK - DCA
2 stops26h 38mUnited Airlines
Fri 24/1006:00DCA - BKK
2 stops30h 55mUnited Airlines
Deal found 7/5฿35,133
Tue 18/1113:10BKK - IAD
1 stop38h 20mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Sat 29/1120:45IAD - BKK
1 stop25h 55mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 7/5฿35,624
Tue 18/1108:35BKK - DCA
2 stops37h 44mแอร์แคนาดา
Sat 29/1111:00DCA - BKK
2 stops31h 15mแอร์แคนาดา
Deal found 6/5฿36,181
Tue 18/1108:35BKK - IAD
2 stops38h 41mแอร์แคนาดา
Sat 29/1109:55IAD - BKK
2 stops32h 20mแอร์แคนาดา
Deal found 6/5฿36,181
Thu 11/1201:30BKK - IAD
1 stop29h 00mAir China
Fri 2/122:00IAD - BKK
1 stop32h 05mAir China
Deal found 6/5฿36,672
Thu 16/1016:45BKK - BWI
2 stops24h 26mMultiple Airlines
Fri 24/1018:17BWI - BKK
2 stops29h 53mMultiple Airlines
Deal found 7/5฿36,835
Tue 17/623:40BKK - IAD
2 stops25h 45mMultiple Airlines
Tue 24/622:20IAD - BKK
2 stops29h 30mMultiple Airlines
Deal found 5/5฿37,163
Tue 3/623:40BKK - IAD
2 stops50h 45mออสเตรียนแอร์ไลน์
Tue 24/618:05IAD - BKK
2 stops33h 45mออสเตรียนแอร์ไลน์
Deal found 6/5฿37,916
Fri 4/708:40BKK - IAD
1 stop42h 00mQatar Airways
Wed 30/721:00IAD - BKK
1 stop28h 55mQatar Airways
Deal found 6/5฿38,145
Tue 3/623:00BKK - IAD
1 stop27h 20mลุฟท์ฮันซ่า
Tue 24/622:20IAD - BKK
1 stop28h 50mลุฟท์ฮันซ่า
Deal found 6/5฿38,636

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 7 May 2025.
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.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 2/6

01:50-15:45

1 stop24h 55m

Washington, D.C. Dulles Intl

Tue 24/6

18:50-13:45

2 stops31h 55m

฿29,992

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 16/10

07:00-13:49

2 stops41h 49m

Washington, D.C. Dulles Intl

Fri 24/10

19:22-10:50

2 stops28h 28m

฿34,969

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 16/10

07:00-22:38

2 stops26h 38m

Washington, D.C. Reagan-National

Fri 24/10

06:00-23:55

2 stops30h 55m

฿35,133

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Thu 16/10

16:45-06:11

2 stops24h 26m

Baltimore/Washington

Fri 24/10

18:17-11:10

2 stops29h 53m

฿36,835

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 17/6

23:40-14:25

2 stops25h 45m

Washington, D.C. Dulles Intl

Tue 24/6

22:20-14:50

2 stops29h 30m

฿37,163

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 3/6

23:40-15:25

2 stops50h 45m

Washington, D.C. Dulles Intl

Tue 24/6

18:05-14:50

2 stops33h 45m

฿37,916

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 3/7

02:30-15:40

1 stop24h 10m

Washington, D.C. Dulles Intl

Wed 30/7

21:00-06:55

1 stop22h 55m

฿38,080

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 3/6

23:00-15:20

1 stop27h 20m

Washington, D.C. Dulles Intl

Tue 24/6

22:20-14:10

1 stop28h 50m

฿38,636

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 16/6

02:40-06:50

2 stops39h 10m

Washington, D.C. Dulles Intl

Tue 24/6

20:19-01:25

2 stops42h 06m

฿39,226

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 15/10

02:35-20:14

2 stops28h 39m

Washington, D.C. Reagan-National

Fri 24/10

07:40-23:25

2 stops28h 45m

฿39,291

Flights are sorted by cheapest return flights first.

Deals found on 7/5

Showing 1-10 of 59 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.

When is the best time to book a flight to Washington, D.C.?

Use this chart to determine the optimal time to book a return flight from Bangkok to Washington, D.C.. Price data was last updated on 2 May 2025.

The best time to book flights to Washington, D.C. is 76 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.

How long is the flight to Washington, D.C.?

On average, a flight from Bangkok to Washington, D.C. takes 26 hours 18 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 cheapest airlines that fly to Washington, D.C.?

The cheapest airlines flying from Bangkok to Washington, D.C. are ซาอุเดียแอร์ไลน์, United Airlines and ANA.

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 7 May 2025.
To help decide which airline to fly to Washington, D.C., see what other customers have to say about EVA Air, Korean Air and Japan Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
8.3
Very Good

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

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.?

    Baltimore/Washington is currently the cheapest airport to fly to in Washington, D.C.. One-way flights to Baltimore/Washington typically cost ฿3,966, while return flights cost around ฿16,462.

  • How much is a return flight to Washington, D.C.?

    A return flight to Washington, D.C. will typically cost around ฿503, however they can be found for as little as ฿503.

  • 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 53 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.

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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.?

Cheapflights helps you find that perfect flight to Washington, D.C. by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Users can book flights with no change fees policies with our dedicated filters. Book flights to Washington, D.C. flexibly with Cheapflights today.

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