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Cheap flights from Portland (PDX) to Washington (DCA)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Portland (PDX) to Washington (DCA)

How to find the cheapest flight from Portland (PDX) to Washington (DCA)
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How to find the cheapest flight from Portland (PDX) to Washington (DCA)
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How to find the cheapest flight from Portland (PDX) to Washington (DCA)
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Cheap flights from Portland to Washington in August , September 2026

25 Aug - 10 Sep $ 524.00
PDX
Portland
Frontier Airlines
1 STOPS
DCA
Washington
DCA
Washington
Frontier Airlines
1 STOPS
PDX
Portland
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31 Aug - 07 Sep $ 637.00
PDX
Portland
Alaska Airlines
1 STOPS
DCA
Washington
DCA
Washington
Alaska Airlines
DIRECT
PDX
Portland
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27 Aug - 10 Sep $ 732.00
PDX
Portland
Alaska Airlines
DIRECT
DCA
Washington
DCA
Washington
Alaska Airlines
DIRECT
PDX
Portland
Pick dates

Last minute flights from Portland to Washington

25 Aug - 31 Aug $ 736.00
PDX
Portland
Frontier Airlines
1 STOPS
DCA
Washington
DCA
Washington
Frontier Airlines
1 STOPS
PDX
Portland
Pick dates
28 Aug - 31 Aug $ 751.00
PDX
Portland
Alaska Airlines
DIRECT
DCA
Washington
DCA
Washington
Alaska Airlines
DIRECT
PDX
Portland
Pick dates
26 Aug - 31 Aug $ 751.00
PDX
Portland
Alaska Airlines
DIRECT
DCA
Washington
DCA
Washington
Alaska Airlines
DIRECT
PDX
Portland
Pick dates

One-way flights to Washington from Portland

12:20 PM - 7:30 AM
Frontier Airlines
1 Stops
21h 31m
PDX - DCA
$ 242
Kiwi
Pick dates
5:56 PM - 7:30 AM
Frontier Airlines
1 Stops
15h 55m
PDX - DCA
$ 338
Kiwi
Pick dates
7:52 AM - 7:52 AM
Alaska Airlines
0 Stops
5h 8m
PDX - DCA
$ 464
Kiwi
Pick dates

How to find the cheapest flight from Portland (PDX) to Washington (DCA)

Related info for your journey
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How to find the cheapest flight from Portland (PDX) to Washington (DCA)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Portland (PDX) to Washington (DCA)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.