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฿5,072+ 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
3 Jan — 10 Jan1
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 4 December 2025.

Wed 18/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Tue 24/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 3/12฿9,824
Thu 5/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Sun 8/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 2/12฿10,111
Mon 9/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Sat 14/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 2/12฿10,462
Wed 8/417:45IAD - PDX
Nonstop5h 46mUnited Airlines
Sun 12/408:00PDX - IAD
Nonstop5h 12mUnited Airlines
Deal found 2/12฿10,781
Mon 9/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Thu 12/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 2/12฿11,387
Fri 6/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Tue 10/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 2/12฿12,663
Mon 13/417:45IAD - PDX
Nonstop5h 46mUnited Airlines
Tue 21/408:00PDX - IAD
Nonstop5h 12mUnited Airlines
Deal found 3/12฿12,727
Wed 18/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Thu 26/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 2/12฿13,014
Fri 6/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Mon 9/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 2/12฿13,301
Fri 20/317:45IAD - PDX
Nonstop5h 55mUnited Airlines
Sat 28/323:10PDX - IAD
Nonstop4h 53mUnited Airlines
Deal found 2/12฿13,620
Sat 25/417:45IAD - PDX
Nonstop5h 46mUnited Airlines
Sat 2/506:50PDX - IAD
Nonstop4h 48mUnited Airlines
Deal found 3/12฿13,652
Thu 9/417:45IAD - PDX
Nonstop5h 46mUnited Airlines
Thu 16/408:00PDX - IAD
Nonstop5h 12mUnited Airlines
Deal found 2/12฿13,939

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 4 December 2025.

Fly to

Suvarnabhumi

Route

Depart

Return

Price

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 8/4

17:45-20:31

Nonstop5h 46m

Portland

Sat 11/4

08:00-16:12

Nonstop5h 12m

฿10,781

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Mon 13/4

17:45-20:31

Nonstop5h 46m

Portland

Tue 21/4

08:00-16:12

Nonstop5h 12m

฿12,727

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

฿13,014

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

฿13,014

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 18/3

17:45-20:40

Nonstop5h 55m

Portland

Thu 26/3

23:10-07:03

Nonstop4h 53m

฿13,014

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

฿13,301

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sat 25/4

17:45-20:31

Nonstop5h 46m

Portland

Sat 2/5

06:50-14:38

Nonstop4h 48m

฿13,652

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Thu 9/4

17:45-20:31

Nonstop5h 46m

Portland

Thu 16/4

08:00-16:12

Nonstop5h 12m

฿13,939

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sat 21/3

17:45-20:40

Nonstop5h 55m

Portland

Sat 28/3

23:10-07:03

Nonstop4h 53m

฿13,971

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Tue 24/3

17:45-20:40

Nonstop5h 55m

Portland

Mon 30/3

08:00-16:12

Nonstop5h 12m

฿13,971

Flights are sorted by cheapest return flights first.

Deals found on 2/12

Showing 1-10 of 16 results
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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
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.

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 4 December 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 ฿10,985. If you're looking for a direct round-trip flight from Washington, D.C. Dulles Intl Airport, you can expect to pay around ฿16,074.

  • 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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Direct flights from District of Columbia cities

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