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฿17,611+ Cheap flights to Dulles Intl

— IAD
7 Oct — 14 Oct1
1 adult
1 adult, Economy, 0 bags

Flights to Dulles Intl in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Dulles Intl Airport

Sun 4/1015:25 -
1 stop35h 20m
Sun 11/1018:50 -
1 stop31h 55m
Deal found 3/9฿24,610
Fri 4/912:40 -
1 stop20h 20m
Wed 16/901:15 -
1 stop22h 25m
Deal found 3/9฿26,384
Sat 26/912:40 -
1 stop20h 20m
Fri 2/1001:15 -
1 stop22h 25m
Deal found 6/9฿26,449
Sat 19/1212:40 -
1 stop20h 15m
Fri 15/123:55 -
1 stop22h 55m
Deal found 4/9฿26,614
Wed 28/1015:20 -
1 stop34h 30m
Sat 31/1018:50 -
1 stop41h 40m
Deal found 3/9฿26,647
Sat 5/908:15 -
1 stop24h 45m
Fri 18/901:15 -
1 stop33h 20m
Deal found 4/9฿26,877
Thu 1/1017:15 -
1 stop39h 45m
Wed 7/1001:15 -
1 stop33h 20m
Deal found 3/9฿27,238
Mon 5/1012:40 -
1 stop20h 20m
Sat 24/1001:15 -
1 stop22h 35m
Deal found 3/9฿27,304
Fri 4/917:15 -
1 stop39h 45m
Mon 7/901:15 -
1 stop33h 20m
Deal found 2/9฿27,369
Mon 19/1008:15 -
1 stop24h 45m
Sat 24/1001:15 -
1 stop22h 35m
Deal found 5/9฿27,402
Sat 3/1007:30 -
2 stops25h 30m
Fri 9/1001:15 -
2 stops29h 20m
Deal found 5/9฿33,974
Sat 24/1007:30 -
2 stops25h 30m
Fri 30/1001:15 -
2 stops31h 30m
Deal found 3/9฿35,386

Find flight deals to Dulles Intl Airport

Return from

฿24,610

One-way from

฿17,611

Popular in

April

Cheapest in

October

Average price

฿37,851
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 4/10-11/10
  • 2 total stops
  • 67h 15m total
  • Bangkok to Washington, D.C.
Search Deals
3/12-31/12
  • 3/12-31/12
  • 2 total stops
  • 47h 30m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (฿7,866 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,093 potential savings vs. average return price).
Search Deals
Average for return flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport 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

Sun 13/12

17:50-16:26

2 stops34h 36m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿21,981
Fastest return journey

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sat 12/9

02:30-15:40

1 stop24h 10m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿25,332

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sat 24/10

15:45-08:49

3 stops28h 04m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿29,538

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sun 31/1

16:55-11:42

3 stops30h 47m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿29,768

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Tue 13/10

15:45-15:46

3 stops35h 01m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿29,768

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sat 17/10

15:45-11:55

3 stops31h 10m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿29,834

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Wed 3/2

16:55-11:37

3 stops30h 42m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿29,867

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sun 27/9

15:45-11:55

3 stops31h 10m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿29,867

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Mon 1/2

16:55-11:37

3 stops30h 42m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿29,867

BangkokWashington, D.C.

DMK Bangkok Don Mueang Intl - IAD Washington, D.C. Dulles Intl

DMKIAD

Bangkok Don Mueang Intl

Fri 23/10

23:50-09:00

1 stop44h 10m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿31,181

Flights are sorted by cheapest return flights first.

Deals found on 6/9

Showing 1-10 of 40 resultsSorted by cheapest first
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Best time to book a flight to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight to Washington, D.C. Dulles Intl Airport

How long is the flight to Dulles Intl?

On average, a flight from Bangkok to Dulles Intl takes 25 hours 50 minutes. Flights to Dulles Intl 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 Dulles Intl?

The most popular airlines flying from Bangkok to Dulles Intl are United Airlines, เอทิฮัดแอร์เวย์ and Korean Air.

United Airlines
United Airlines
From ฿26,591
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿32,775
Korean Air
Korean Air
From ฿33,129

What are the cheapest airlines that fly to Dulles Intl?

The cheapest airlines flying from Bangkok to Dulles Intl are United Airlines, เอทิฮัดแอร์เวย์ and Korean Air.

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Dulles Intl 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 Dulles Intl when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Dulles Intl, 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 Dulles Intl

Get a feel of what it's like to fly with Korean Air,United Airlines, andเอทิฮัดแอร์เวย์ to the United States by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very Good
1,221 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
10,173 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
เอทิฮัดแอร์เวย์
7.3
Good
1,533 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

FAQs about flying to Dulles Intl

  • Can I find cheaper flights to Dulles Intl 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 Dulles Intl on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Dulles Intl?

    Based on reviews from Cheapflights users, United Airlines is rated the highest out of the airlines that fly to Dulles Intl.

  • Where does the fastest flight to Dulles Intl depart from?

    For those looking to save time traveling to Dulles Intl, Bangkok offers the quickest one-way flight (20 hours 10 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

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