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฿3,989+ Cheap flights from Washington, D.C. Dulles Intl Airport

IAD — BKK
3 Oct — 10 Oct1
1 adult
1 adult, Economy, 0 bags

Find flights from Dulles Intl within your budget

 

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Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PDX Portland

IADPDX

Washington, D.C. Dulles Intl

Tue 20/10

19:24-09:31

1 stop17h 07m

Portland

Tue 27/10

13:49-17:50

1 stop25h 01m

฿14,060

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PDX Portland

IADPDX

Washington, D.C. Dulles Intl

Wed 28/10

19:24-09:31

1 stop17h 07m

Portland

Tue 10/11

10:34-17:40

1 stop28h 06m

฿14,060

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PDX Portland

IADPDX

Washington, D.C. Dulles Intl

Thu 29/10

07:02-16:00

2 stops11h 58m

Portland

Tue 3/11

10:33-05:44

2 stops16h 11m

฿14,658

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PDX Portland

IADPDX

Washington, D.C. Dulles Intl

Fri 2/10

19:47-09:31

1 stop16h 44m

Portland

Tue 6/10

07:09-23:59

2 stops13h 50m

฿15,289

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PDX Portland

IADPDX

Washington, D.C. Dulles Intl

Thu 1/10

07:00-13:37

1 stop9h 37m

Portland

Tue 6/10

11:03-23:59

1 stop9h 56m

฿16,021
Fastest return journey

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PDX Portland

IADPDX

Washington, D.C. Dulles Intl

Tue 22/9

17:33-20:10

Nonstop5h 37m

Portland

Wed 30/9

08:25-16:27

Nonstop5h 02m

฿16,453

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PDX Portland

IADPDX

Washington, D.C. Dulles Intl

Thu 8/10

06:05-10:41

1 stop7h 36m

Portland

Thu 15/10

13:44-23:26

1 stop6h 42m

฿16,719

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PDX Portland

IADPDX

Washington, D.C. Dulles Intl

Wed 21/10

17:30-20:10

Nonstop5h 40m

Portland

Tue 27/10

09:00-19:30

1 stop7h 30m

฿16,785

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PDX Portland

IADPDX

Washington, D.C. Dulles Intl

Fri 16/10

17:30-20:10

Nonstop5h 40m

Portland

Mon 19/10

07:02-17:44

1 stop7h 42m

฿16,785

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PDX Portland

IADPDX

Washington, D.C. Dulles Intl

Sat 3/10

07:02-16:00

2 stops11h 58m

Portland

Sat 10/10

10:30-23:59

2 stops10h 29m

฿16,885

Flights are sorted by cheapest return flights first.

Deals found on 31/8

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Best time to book a flight from Dulles Intl

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

Travel insights for flights from Dulles Intl

Get recent, data-driven insights about flights from Dulles Intl including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport (average of ฿31,111). Flying from Washington, D.C. Dulles Intl Airport in December will prove the most costly (average of ฿55,806). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Washington, D.C. Dulles Intl Airport?

Many airlines operate round-trip flights from Washington, D.C. Dulles Intl Airport: Korean Air, เตอร์กิชแอร์ไลน์. These airlines fly to the following popular destinations: Bangkok.

Korean Air
Korean Air
From ฿42,062
เตอร์กิชแอร์ไลน์
เตอร์กิชแอร์ไลน์
From ฿32,799

What are popular destinations to fly to from Washington, D.C. Dulles Intl Airport?

If you’re flying from Washington, D.C. Dulles Intl Airport, these routes are more frequently taken by airlines Chicago (390 flights per day), London (360 flights per day) and Detroit (318 flights per day).

Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From ฿2,495
Paris
Paris
From ฿15,366
London
London
From ฿15,153
Indianapolis
Indianapolis
From ฿7,193

What is the cheapest place to fly to from Washington, D.C. Dulles Intl Airport?

The cheapest city to fly to from Washington, D.C. Dulles Intl Airport is Atlanta Hartsfield-Jackson, with prices starting at ฿2,495. Explore other affordable destinations below.

Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From ฿2,495
Detroit
Detroit
From ฿3,430
New York
New York
From ฿3,637
Chicago
Chicago
From ฿4,268

When is the best time to book a flight from Washington, D.C. Dulles Intl Airport?

Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Airline reviews for flights from Dulles Intl

See what other customers who have flown with Korean Air and เตอร์กิชแอร์ไลน์ from Washington, D.C. Dulles Intl Airport have to say. 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

Boarding

8.5

Crew

8.7

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Walter,Jul 2026

LAX - BKK

It was all good! The crew was amazing and attentive seats were comfortable and we got to our destination right on time! A great experience overall!
Korean Air
8.4
Very Good
1,221 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Crew

8.7

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Walter,Jul 2026

LAX - BKK

It was all good! The crew was amazing and attentive seats were comfortable and we got to our destination right on time! A great experience overall!
เตอร์กิชแอร์ไลน์
7.4
Good
4,481 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Crew

8.7

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Walter,Jul 2026

LAX - BKK

It was all good! The crew was amazing and attentive seats were comfortable and we got to our destination right on time! A great experience overall!

Browse thousands of different options on Cheapflights for your next trip

Alternate flight departure points to Dulles Intl

Flights from Reagan-National

Related info for your journey

  • What are the most popular destinations to fly to from Washington, D.C. Dulles Intl Airport?

    The most selected flight destinations from Washington, D.C. Dulles Intl Airport for the current month are Atlanta, Athens, Casablanca. While Mumbai, Cairo, Casablanca are the top choices made by travellers year-round.

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to anywhere?

    Users have flown out of Washington, D.C. Dulles Intl Airport for as low as ฿2,495 to Atlanta (prices may vary depending on the airline and departure time). On average, users have booked flights for ฿16,073 to fly from Washington, D.C. Dulles Intl Airport.

  • What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport?

    At the present moment the cheapest month to fly from Washington, D.C. Dulles Intl Airport is currently September; with December being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Washington, D.C. Dulles Intl Airport?

    Here are some of the cheapest flight destinations from Washington, D.C. Dulles Intl Airport:
    Fly from Washington, D.C. to Bangkok from ฿25,294

  • How does Cheapflights help users find flights from Dulles Intl?

    Cheapflights helps you search for flights from 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 from Dulles Intl?

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

  • Can Cheapflights find flights from Dulles Intl with no change fees?

    Yes! Cheapflights helps users easily find flights from Dulles Intl with no change fees.

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

    Yes, Cheapflights offers price alerts on flights from Dulles Intl so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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How does Cheapflights help users find flights from Dulles Intl?

Cheapflights helps you search for flights from 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 from Dulles Intl?

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

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

Yes! Cheapflights helps users easily find flights from Dulles Intl with no change fees.

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

Yes, Cheapflights offers price alerts on flights from Dulles Intl so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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