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฿6,494+ Direct flights from Washington, D.C. Reagan-National 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 17/3. 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.
DCA — BKK
19 Mar — 26 Mar1
1 adult
1 adult, Economy, 0 bags

Direct flights from Reagan-National

Enter your travel dates to find the best prices.

Cheapest flights from Reagan-National
Explore the most affordable flight options available from Reagan-National. Find the lowest fares based on data from user searches, with prices last updated on 17 February 2026.

Tue 17/317:06
DCA
-
PDX
Nonstop6h 07m
อลาสกาแอร์ไลน์
Wed 1/408:01
PDX
-
DCA
Nonstop4h 59m
อลาสกาแอร์ไลน์
Deal found 16/2฿11,714
Tue 21/417:20
DCA
-
PDX
Nonstop5h 57m
อลาสกาแอร์ไลน์
Fri 8/507:49
PDX
-
DCA
Nonstop5h 11m
อลาสกาแอร์ไลน์
Deal found 16/2฿13,268
Tue 14/417:20
DCA
-
PDX
Nonstop5h 57m
อลาสกาแอร์ไลน์
Thu 16/408:01
PDX
-
DCA
Nonstop4h 59m
อลาสกาแอร์ไลน์
Deal found 14/2฿14,511
Sat 18/417:20
DCA
-
PDX
Nonstop5h 57m
อลาสกาแอร์ไลน์
Thu 7/507:49
PDX
-
DCA
Nonstop5h 11m
อลาสกาแอร์ไลน์
Deal found 16/2฿14,822
Wed 3/617:19
DCA
-
PDX
Nonstop5h 53m
อลาสกาแอร์ไลน์
Mon 8/607:50
PDX
-
DCA
Nonstop5h 10m
อลาสกาแอร์ไลน์
Deal found 15/2฿16,375
Tue 17/317:06
DCA
-
PDX
Nonstop6h 07m
อลาสกาแอร์ไลน์
Tue 24/308:01
PDX
-
DCA
Nonstop4h 59m
อลาสกาแอร์ไลน์
Deal found 13/2฿16,686
Mon 2/317:06
DCA
-
PDX
Nonstop6h 07m
อลาสกาแอร์ไลน์
Thu 5/308:04
PDX
-
DCA
Nonstop4h 56m
อลาสกาแอร์ไลน์
Deal found 16/2฿17,867
Wed 29/717:16
DCA
-
PDX
Nonstop5h 51m
อลาสกาแอร์ไลน์
Tue 11/807:54
PDX
-
DCA
Nonstop5h 06m
อลาสกาแอร์ไลน์
Deal found 16/2฿17,929
Wed 20/517:19
DCA
-
PDX
Nonstop5h 53m
อลาสกาแอร์ไลน์
Sun 24/507:50
PDX
-
DCA
Nonstop5h 10m
อลาสกาแอร์ไลน์
Deal found 17/2฿18,240
Tue 28/417:28
DCA
-
PDX
Nonstop5h 49m
อลาสกาแอร์ไลน์
Sat 2/507:49
PDX
-
DCA
Nonstop5h 11m
อลาสกาแอร์ไลน์
Deal found 16/2฿18,861
Sat 28/217:06
DCA
-
PDX
Nonstop6h 07m
อลาสกาแอร์ไลน์
Sat 7/308:04
PDX
-
DCA
Nonstop4h 56m
อลาสกาแอร์ไลน์
Deal found 13/2฿19,141

Find direct flights from Reagan-National within your budget

 
Use the slider to find direct flights from Reagan-National 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 17 February 2026.

Fly to

Suvarnabhumi

Route

Depart

Return

Price

Washington, D.C.Portland

DCA - PDX

DCAPDX

Washington, D.C. Reagan-National

Wed 13/5

17:19-20:12

Nonstop5h 53m

Portland

Tue 19/5

07:50-16:00

Nonstop5h 10m

฿13,268

Washington, D.C.Portland

DCA - PDX

DCAPDX

Washington, D.C. Reagan-National

Sat 18/4

17:20-20:17

Nonstop5h 57m

Portland

Fri 8/5

07:49-16:00

Nonstop5h 11m

฿14,822

Washington, D.C.Portland

DCA - PDX

DCAPDX

Washington, D.C. Reagan-National

Mon 20/4

17:20-20:17

Nonstop5h 57m

Portland

Wed 6/5

07:49-16:00

Nonstop5h 11m

฿14,822

Washington, D.C.Portland

DCA - PDX

DCAPDX

Washington, D.C. Reagan-National

Thu 14/5

17:19-20:12

Nonstop5h 53m

Portland

Wed 20/5

07:50-16:00

Nonstop5h 10m

฿14,822

Washington, D.C.Portland

DCA - PDX

DCAPDX

Washington, D.C. Reagan-National

Wed 3/6

17:19-20:12

Nonstop5h 53m

Portland

Mon 8/6

07:50-16:00

Nonstop5h 10m

฿16,375

Washington, D.C.Portland

DCA - PDX

DCAPDX

Washington, D.C. Reagan-National

Mon 15/6

17:16-20:07

Nonstop5h 51m

Portland

Sat 20/6

07:54-16:00

Nonstop5h 06m

฿16,375

Washington, D.C.Portland

DCA - PDX

DCAPDX

Washington, D.C. Reagan-National

Tue 17/3

17:06-20:13

Nonstop6h 07m

Portland

Tue 24/3

08:01-16:00

Nonstop4h 59m

฿16,686

Washington, D.C.Portland

DCA - PDX

DCAPDX

Washington, D.C. Reagan-National

Sat 4/4

17:20-20:17

Nonstop5h 57m

Portland

Tue 7/4

08:01-16:00

Nonstop4h 59m

฿16,686

Washington, D.C.Portland

DCA - PDX

DCAPDX

Washington, D.C. Reagan-National

Mon 10/8

17:16-20:07

Nonstop5h 51m

Portland

Sat 15/8

07:54-16:00

Nonstop5h 06m

฿16,686

Washington, D.C.Portland

DCA - PDX

DCAPDX

Washington, D.C. Reagan-National

Sat 8/8

17:16-20:07

Nonstop5h 51m

Portland

Sat 15/8

07:54-16:00

Nonstop5h 06m

฿16,686

Flights are sorted by cheapest return flights first.

Deals found on 17/2

Showing 1-10 of 24 results
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Best time to book a flight from Reagan-National

Have a flexible travel schedule? Discover the best time to fly from Reagan-National 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 Reagan-National. 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 17 February 2026.

  • Where can you fly direct from Washington, D.C. Reagan-National Airport?

    Currently, the most popular direct flight destination from Washington, D.C. Reagan-National Airport is Milwaukee.

  • How much are direct flights from Washington, D.C. Reagan-National Airport?

    On average, a one-way direct flight from Washington, D.C. Reagan-National Airport will cost users approximately ฿3,614. If you're looking for a direct round-trip flight from Washington, D.C. Reagan-National Airport, you can expect to pay around ฿5,125.

  • What is the best time of year to fly direct from Washington, D.C. Reagan-National Airport?

    If you're seeking the lowest price on a direct flight from Washington, D.C. Reagan-National Airport, September 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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