Find flights
Airlines

฿20,024+ 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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
15 Jun — 22 Jun1
1 adult

Flights to Dulles Intl in 2025

Find the latest flights to Dulles Intl 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 10 June 2025.

Return from

฿25,839

One-way from

฿20,024

Popular in

August

Cheapest in

November

Average price

฿36,521
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 24/9-8/10
  • 3 total stops
  • 67h 15m total
  • Bangkok to Washington, D.C.
Search Deals
26/9
  • 26/9
  • 3 total stops
  • 35h 00m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (฿127,309 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿39,584 potential savings vs. average return price).
Search Deals
Average for return flights in June 2025
Search Deals

Find flight deals to Dulles Intl Airport

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 10 June 2025.

Wed 24/901:50BKK - IAD
1 stop24h 55mซาอุเดียแอร์ไลน์
Wed 8/1018:50IAD - BKK
2 stops42h 20mซาอุเดียแอร์ไลน์
Deal found 8/6฿25,839
Wed 9/723:40BKK - IAD
2 stops47h 05mMultiple Airlines
Wed 5/1111:50IAD - BKK
1 stop24h 55mMultiple Airlines
Deal found 8/6฿33,254
Wed 18/609:35BKK - IAD
1 stop41h 10mUnited Airlines
Wed 12/1112:40IAD - BKK
3 stops34h 10mUnited Airlines
Deal found 9/6฿33,418
Thu 12/613:55BKK - IAD
2 stops41h 57mANA
Sat 14/612:20IAD - BKK
1 stop30h 40mANA
Deal found 9/6฿33,450
Thu 20/1101:00BKK - IAD
1 stop20h 50mKorean Air
Wed 18/312:50IAD - BKK
1 stop24h 55mKorean Air
Deal found 10/6฿34,496
Thu 18/909:50BKK - IAD
2 stops24h 59mเดลต้า
Sun 23/1119:50IAD - BKK
2 stops37h 40mเดลต้า
Deal found 9/6฿35,639
Tue 16/912:35BKK - IAD
1 stop37h 50mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Mon 24/1117:25IAD - BKK
1 stop29h 15mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 9/6฿35,868
Tue 24/623:00BKK - IAD
1 stop27h 20mลุฟท์ฮันซ่า
Sat 17/117:40IAD - BKK
1 stop33h 10mลุฟท์ฮันซ่า
Deal found 9/6฿36,423
Tue 18/1108:35BKK - IAD
2 stops38h 48mแอร์แคนาดา
Sat 29/1109:55IAD - BKK
2 stops32h 20mแอร์แคนาดา
Deal found 8/6฿36,750
Mon 15/923:40BKK - IAD
2 stops50h 45mออสเตรียนแอร์ไลน์
Fri 14/1118:00IAD - BKK
1 stop33h 30mออสเตรียนแอร์ไลน์
Deal found 8/6฿37,011
Mon 30/602:30BKK - IAD
1 stop41h 10mQatar Airways
Tue 8/711:00IAD - BKK
1 stop21h 20mQatar Airways
Deal found 10/6฿37,370
Tue 10/602:40BKK - IAD
2 stops51h 39mChina Airlines
Wed 30/719:59IAD - BKK
2 stops26h 46mChina Airlines
Deal found 9/6฿37,926

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 10 June 2025.
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

Wed 24/9

01:50-15:45

1 stop24h 55m

Washington, D.C. Dulles Intl

Wed 8/10

18:50-00:10

2 stops42h 20m

฿25,839

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 9/7

23:40-11:45

2 stops47h 05m

Washington, D.C. Dulles Intl

Wed 5/11

11:50-00:45

1 stop24h 55m

฿33,254

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 4/7

09:35-10:05

1 stop35h 30m

Washington, D.C. Dulles Intl

Sat 19/7

13:20-04:35

2 stops28h 15m

฿33,450

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 8/9

23:40-19:45

2 stops31h 05m

Washington, D.C. Dulles Intl

Wed 17/9

21:40-22:40

2 stops38h 00m

฿33,712

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 20/11

01:00-09:50

1 stop20h 50m

Washington, D.C. Dulles Intl

Wed 18/3

12:50-00:45

1 stop24h 55m

฿34,496

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 27/6

13:55-10:05

1 stop31h 10m

Washington, D.C. Dulles Intl

Fri 4/7

15:39-06:00

2 stops27h 21m

฿34,528

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 18/9

09:50-23:49

2 stops24h 59m

Washington, D.C. Dulles Intl

Sun 23/11

19:50-21:30

2 stops37h 40m

฿35,639

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 16/9

12:35-15:25

1 stop37h 50m

Washington, D.C. Dulles Intl

Mon 24/11

17:25-10:40

1 stop29h 15m

฿35,868

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 24/6

23:00-15:20

1 stop27h 20m

Washington, D.C. Dulles Intl

Sat 17/1

17:40-14:50

1 stop33h 10m

฿36,423

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 18/11

08:35-11:23

2 stops38h 48m

Washington, D.C. Dulles Intl

Sat 29/11

09:55-06:15

2 stops32h 20m

฿36,750

Flights are sorted by cheapest return flights first.

Deals found on 9/6

Showing 1-10 of 37 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 9 June 2025.

To ensure you get the cheapest price possible for a flight to Dulles Intl, you should look to book at least 41 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 26 hours 0 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 Qatar Airways.

United Airlines
United Airlines
From ฿988
ANA
ANA
From ฿1,018
Qatar Airways
Qatar Airways
From ฿1,238
Emirates
Emirates
From ฿1,307

What are the cheapest airlines that fly to Dulles Intl?

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

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 10 June 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. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,202 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very Good
1,088 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very Good
1,489 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very Good
738 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.3
Very Good
878 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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.

  • What is the cheapest airport to fly to in Dulles Intl?

    Washington, D.C. Dulles Intl is currently the cheapest airport to fly to in Dulles Intl. One-way flights to Washington, D.C. Dulles Intl typically cost ฿6,506, while return flights cost around ฿16,424.

  • How much is a return flight to Dulles Intl?

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

  • 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 (22 hours 35 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.
Site
©2025 Cheapflights