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฿5,151+ Direct flights from Washington, D.C. Dulles Intl Airport

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 7/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
IAD — BKK
16 Dec — 23 Dec1
1 adult
1 adult, Economy, 0 bags

Direct flights from Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl
Explore the most affordable flight options available from Dulles Intl. Find the lowest fares based on data from user searches, with prices last updated on 16 November 2025.

Tue 17/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Sun 22/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 16/11฿9,979
Fri 6/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Sun 15/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 15/11฿10,627
Sat 14/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Sun 22/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 16/11฿10,951
Thu 5/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Sat 7/322:19PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 15/11฿12,668
Tue 17/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Tue 24/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 15/11฿13,218
Thu 5/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Sun 8/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 15/11฿13,316
Tue 10/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Wed 11/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 15/11฿13,510
Wed 31/1217:50IAD - PDX
Nonstop5h 58mUnited Airlines
Sun 4/122:52PDX - IAD
Nonstop4h 58mUnited Airlines
Deal found 15/11฿13,542
Thu 12/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Sun 15/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 16/11฿13,866
Fri 13/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Sun 15/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 16/11฿14,190
Wed 24/1217:50IAD - PDX
Nonstop5h 58mUnited Airlines
Tue 30/1222:52PDX - IAD
Nonstop4h 58mUnited Airlines
Deal found 16/11฿16,750
Thu 25/1217:50IAD - PDX
Nonstop5h 58mUnited Airlines
Wed 31/1222:52PDX - IAD
Nonstop4h 58mUnited Airlines
Deal found 16/11฿17,236

Find direct flights from Dulles Intl within your budget

 
Use the slider to find direct flights from Dulles Intl within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 17,341 searches. This data was last updated on 16 November 2025.

Fly to

Suvarnabhumi

Route

Depart

Return

Price

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sat 14/3

17:45-20:40

Nonstop5h 55m

Portland

Sun 22/3

23:10-07:03

Nonstop4h 53m

฿10,951

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Thu 5/3

17:45-20:40

Nonstop5h 55m

Portland

Sat 7/3

22:19-06:12

Nonstop4h 53m

฿12,668

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Tue 17/3

17:45-20:40

Nonstop5h 55m

Portland

Tue 24/3

23:10-07:03

Nonstop4h 53m

฿13,218

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sat 7/3

17:45-20:40

Nonstop5h 55m

Portland

Sat 14/3

23:10-07:03

Nonstop4h 53m

฿13,218

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Thu 5/3

17:45-20:40

Nonstop5h 55m

Portland

Sun 8/3

23:10-07:03

Nonstop4h 53m

฿13,316

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Fri 6/3

17:45-20:40

Nonstop5h 55m

Portland

Mon 9/3

23:10-07:03

Nonstop4h 53m

฿13,510

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Tue 10/3

17:45-20:40

Nonstop5h 55m

Portland

Wed 11/3

23:10-07:03

Nonstop4h 53m

฿13,510

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Thu 12/3

17:45-20:40

Nonstop5h 55m

Portland

Sun 15/3

23:10-07:03

Nonstop4h 53m

฿13,866

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 25/3

17:45-20:40

Nonstop5h 55m

Portland

Wed 1/4

08:00-16:12

Nonstop5h 12m

฿14,190

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sat 7/3

17:45-20:40

Nonstop5h 55m

฿5,151

Flights are sorted by cheapest return flights first.

Deals found on 16/11

Showing 1-10 of 17 results
1
2

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
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.

Reviews of airlines flying direct to Dulles Intl

Get insights into the airlines that provide direct flights from 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 from Dulles Intl. Reviews last updated Cheapflights.
See what other customers who have flown with Qatar Airways 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.
Qatar Airways
7.4
Good
3,664 reviews
Check prices

Boarding

7.5

Overall

7.4

Comfort

7.4

Entertainment

7.4

Food

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Qatar Airways
7.4
Good
3,664 reviews
Qatar Airways
7.4
Good
3,664 reviews
Check prices

Boarding

7.5

Overall

7.4

Comfort

7.4

Entertainment

7.4

Food

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Related info for your journey

Access useful and relevant information related to your journey from Dulles Intl. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 16 November 2025.

  • Where can you fly direct from Washington, D.C. Dulles Intl Airport?

    Currently, the most popular direct flight destination from Washington, D.C. Dulles Intl Airport is Columbus Airport.

  • How much are direct flights from Washington, D.C. Dulles Intl Airport?

    On average, a one-way direct flight from Washington, D.C. Dulles Intl Airport will cost users approximately ฿11,158. If you're looking for a direct round-trip flight from Washington, D.C. Dulles Intl Airport, you can expect to pay around ฿16,327.

  • What is the best time of year to fly direct from Washington, D.C. Dulles Intl Airport?

    If you're seeking the lowest price on a direct flight from Washington, D.C. Dulles Intl Airport, July is worth consideration as prices are at their lowest, on average. In terms of the number of daily non-stop flights, September offers travelers the most options.

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