Find flights
Airlines

฿18,115+ Cheap flights to Dulles Intl

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
18 Feb — 25 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Dulles Intl in 2026

Find the latest flights to Dulles Intl 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 19 January 2026.

Return from

฿29,460

One-way from

฿18,115

Popular in

August

Cheapest in

October

Average price

฿39,959
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 10/4-25/4
  • 2 total stops
  • 67h 15m total
  • Bangkok to Washington, D.C.
Search Deals
IndiGo
  • IndiGo
  • 10/2
  • 2 total stops
  • 45h 10m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿725 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿907 potential savings vs. average return price).
Search Deals
Average for return flights in January 2026
Search Deals

Find flight deals to Dulles Intl Airport

Enter your travel dates to find the best prices.

Cheapest flights to Dulles Intl Airport
Explore the most affordable flight options available to Dulles Intl Airport. Find the lowest fares based on data from user searches, with prices last updated on 19 January 2026.

Fri 10/415:20
BKK
-
IAD
1 stop35h 25m
ซาอุเดียแอร์ไลน์
Sat 25/418:50
IAD
-
BKK
1 stop31h 50m
ซาอุเดียแอร์ไลน์
Deal found 17/1฿29,460
Mon 16/210:10
BKK
-
IAD
2 stops45h 10m
IndiGo
Mon 23/221:15
IAD
-
BKK
2 stops35h 50m
IndiGo
Deal found 18/1฿31,090
Sat 14/210:10
BKK
-
IAD
2 stops45h 10m
IndiGo
Sat 21/221:15
IAD
-
BKK
2 stops35h 50m
IndiGo
Deal found 17/1฿31,246
Mon 16/217:05
BKK
-
IAD
2 stops28h 00m
Multiple Airlines
Mon 23/214:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 18/1฿31,340
Tue 17/210:10
BKK
-
IAD
2 stops45h 10m
Multiple Airlines
Tue 24/214:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 18/1฿31,403
Sun 25/110:50
BKK
-
IAD
2 stops44h 30m
Multiple Airlines
Sat 7/214:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 17/1฿31,999
Wed 6/513:25
BKK
-
IAD
2 stops45h 44m
Multiple Airlines
Wed 13/515:35
IAD
-
BKK
1 stop28h 10m
Multiple Airlines
Deal found 18/1฿32,030
Tue 3/310:50
BKK
-
IAD
2 stops34h 15m
Multiple Airlines
Tue 10/315:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 17/1฿32,124
Sun 25/115:20
BKK
-
IAD
1 stop35h 25m
ซาอุเดียแอร์ไลน์
Sat 7/218:10
IAD
-
BKK
1 stop41h 20m
ซาอุเดียแอร์ไลน์
Deal found 17/1฿32,187
Sat 24/117:15
BKK
-
IAD
2 stops35h 11m
Multiple Airlines
Sat 31/118:04
IAD
-
BKK
2 stops29h 06m
Multiple Airlines
Deal found 17/1฿32,218
Wed 22/401:20
BKK
-
IAD
2 stops33h 49m
Multiple Airlines
Sun 26/415:35
IAD
-
BKK
1 stop21h 15m
Multiple Airlines
Deal found 18/1฿32,249
Thu 23/416:50
DMK
-
IAD
2 stops34h 15m
Multiple Airlines
Sun 26/415:35
IAD
-
DMK
2 stops24h 05m
Multiple Airlines
Deal found 18/1฿33,816

Cheapflights Fare Finder

 
Locate flights to Dulles Intl 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 19 January 2026.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 9/3

10:55-05:40

2 stops29h 45m

Washington, D.C. Dulles Intl

Wed 29/4

17:30-01:25

2 stops44h 55m

฿32,218

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 3/5

09:35-15:40

1 stop41h 05m

Washington, D.C. Dulles Intl

Wed 29/7

06:20-04:35

2 stops35h 15m

฿32,939

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 8/7

09:35-10:05

1 stop35h 30m

Washington, D.C. Dulles Intl

Mon 27/7

10:08-04:35

2 stops31h 27m

฿33,001

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 4/3

17:15-17:20

2 stops36h 05m

Washington, D.C. Dulles Intl

Mon 27/4

19:20-10:55

2 stops28h 35m

฿33,221

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 1/5

15:45-17:28

3 stops36h 43m

Washington, D.C. Dulles Intl

Sat 16/5

22:05-09:35

2 stops48h 30m

฿33,472

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 3/3

16:55-11:49

3 stops30h 54m

Washington, D.C. Dulles Intl

Tue 10/3

18:00-11:25

2 stops30h 25m

฿33,472

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 17/2

16:55-11:49

3 stops30h 54m

Washington, D.C. Dulles Intl

Tue 24/2

22:05-11:25

2 stops49h 20m

฿33,534

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 9/3

16:55-11:50

3 stops29h 55m

Washington, D.C. Dulles Intl

Wed 29/4

17:55-09:35

2 stops28h 40m

฿33,534

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 31/1

16:55-17:35

3 stops36h 40m

Washington, D.C. Dulles Intl

Mon 29/6

06:00-04:35

2 stops35h 35m

฿33,534

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Thu 23/4

16:50-16:05

2 stops34h 15m

Washington, D.C. Dulles Intl

Sun 26/4

15:35-02:40

2 stops24h 05m

฿33,816

Flights are sorted by cheapest return flights first.

Deals found on 17/1

Showing 1-10 of 35 results
1
2
3
4

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
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. Dulles Intl Airport

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

Use this chart to determine the optimal time to book a return flight from Bangkok to Dulles Intl. Price data was last updated on 16 January 2026.

To ensure you get the cheapest price possible for a flight to Dulles Intl, you should look to book at least 80 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.

How long is the flight to Dulles Intl?

On average, a flight from Bangkok to Dulles Intl takes 28 hours 5 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, ANA and Korean Air.

United Airlines
United Airlines
From ฿30,411
ANA
ANA
From ฿33,205
Korean Air
Korean Air
From ฿31,692
Qatar Airways
Qatar Airways
From ฿35,227

What are the cheapest airlines that fly to Dulles Intl?

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

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals 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

Plan your trip to Dulles Intl by taking into account the average temperature totals 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 insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 19 January 2026.
Get a feel of what it's like to fly with ANA, Korean Air, andQatar Airways 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.
ANA
8.4
Very Good
1,077 reviews
Check prices

Food

7.7

Comfort

8.2

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
ANA
8.4
Very Good
1,077 reviews
ANA
8.4
Very Good
1,077 reviews
Check prices

Food

7.7

Comfort

8.2

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
Korean Air
8.4
Very Good
1,187 reviews
ANA
8.4
Very Good
1,077 reviews
Check prices

Food

7.7

Comfort

8.2

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
Qatar Airways
7.4
Good
3,720 reviews
ANA
8.4
Very Good
1,077 reviews
Check prices

Food

7.7

Comfort

8.2

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
United Airlines
7.4
Good
9,177 reviews
ANA
8.4
Very Good
1,077 reviews
Check prices

Food

7.7

Comfort

8.2

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
เอทิฮัดแอร์เวย์
7.3
Good
1,373 reviews
ANA
8.4
Very Good
1,077 reviews
Check prices

Food

7.7

Comfort

8.2

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!

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, ซาอุเดียแอร์ไลน์ 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 (25 hours 5 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Dulles Intl by cabin class

Find flights to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy class

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Dulles Intl?

Cheapflights helps you search for flights to Dulles Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets to Dulles Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to Dulles Intl.

Can Cheapflights find flights to Dulles Intl with no change fees?

Need flexible booking options for your flight to Dulles Intl ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights to Dulles Intl become cheaper?

Yes, and it’s super simple to set up Price Alerts. Click the bell icon next to the flight deals above and provide your email address. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.