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฿17,380+ Cheap flights to Dulles Intl

— IAD
20 Oct — 27 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

Fri 30/1014:30 -
2 stops30h 35m
Fri 6/1123:35 -
1 stop33h 50m
Deal found 15/9฿26,736
Fri 30/1015:20 -
1 stop34h 30m
Fri 6/1117:50 -
1 stop31h 50m
Deal found 15/9฿27,269
Sat 31/1008:10 -
1 stop24h 45m
Fri 6/1123:35 -
1 stop33h 50m
Deal found 17/9฿27,701
Fri 18/917:15 -
1 stop39h 45m
Wed 30/901:15 -
1 stop33h 20m
Deal found 16/9฿28,101
Mon 2/1108:10 -
1 stop24h 45m
Fri 6/1123:35 -
1 stop33h 50m
Deal found 17/9฿28,434
Wed 7/1012:40 -
1 stop20h 20m
Wed 2/1223:55 -
1 stop33h 50m
Deal found 15/9฿28,534
Sat 19/1215:20 -
1 stop35h 25m
Fri 15/117:50 -
1 stop31h 50m
Deal found 18/9฿28,667
Tue 3/1111:30 -
2 stops33h 35m
Tue 10/1114:35 -
1 stop39h 10m
Deal found 19/9฿29,166
Sat 17/1016:45 -
2 stops28h 00m
Sat 24/1015:10 -
2 stops24h 25m
Deal found 19/9฿45,914
Thu 12/1111:10 -
1 stop33h 00m
Mon 16/1110:30 -
1 stop21h 40m
Deal found 17/9฿48,844
Tue 20/1012:10 -
1 stop31h 40m
Sun 25/1011:15 -
1 stop21h 55m
Deal found 19/9฿49,143
Fri 30/1011:10 -
1 stop32h 50m
Mon 2/1110:30 -
1 stop21h 40m
Deal found 20/9฿49,776

Find flight deals to Dulles Intl Airport

Return from

฿26,736

One-way from

฿17,380

Popular in

April

Cheapest in

October

Average price

฿38,356
AIR PREMIA
  • AIR PREMIA
  • 30/10-6/11
  • 3 total stops
  • 64h 25m total
  • Bangkok to Washington, D.C.
Search Deals
7/11-31/12
  • 7/11-31/12
  • 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 (฿7,962 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿2,120 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.

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

DMKIAD

Bangkok Don Mueang Intl

Sun 15/11

21:35-09:05

2 stops47h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿17,613

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Tue 1/12

14:40-09:05

1 stop30h 25m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿17,979

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Fri 6/11

13:45-05:44

2 stops27h 59m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,374

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Fri 19/2

19:10-07:25

2 stops48h 15m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,840
Fastest return journey

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sat 12/12

03:00-15:55

1 stop24h 55m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿23,540

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sun 14/2

13:45-05:31

2 stops27h 46m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿25,637

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sat 28/11

20:35-15:55

1 stop31h 20m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿27,368

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Tue 5/1

19:10-07:25

2 stops48h 15m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿27,801

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sun 29/11

22:05-16:15

2 stops54h 10m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿28,068

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Tue 5/1

03:00-15:55

1 stop24h 55m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿29,433

Flights are sorted by cheapest return flights first.

Deals found on 18/9

Showing 1-10 of 36 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 31 hours 40 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, Korean Air and เอทิฮัดแอร์เวย์.

United Airlines
United Airlines
From ฿26,946
Korean Air
Korean Air
From ฿33,571
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿33,212
ANA
ANA
From ฿35,103

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).

When is the best time to book a flight to Dulles Intl?

To ensure you get the cheapest price possible for a flight to Dulles Intl, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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
1,218 reviews
Check prices

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

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
1,218 reviews
Korean Air
8.4
Very Good
1,218 reviews
Check prices

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

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
10,227 reviews
Korean Air
8.4
Very Good
1,218 reviews
Check prices

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

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
1,532 reviews
Korean Air
8.4
Very Good
1,218 reviews
Check prices

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

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, Utapao Rayong Pattaya offers the quickest one-way flight (28 hours 45 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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