Flights from Portland Oregon to Washington DC

Our cheapest offers for flights from Portland Oregon to Washington DC

Here you can compare cheap flights from Portland Oregon (PDX) to Washington DC (DCA) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Washington DC. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Portland-Oregon
Washington DC
Outbound
10/18/25
1 Stopover (DEN)
F91790, F90688
07h 56min
Return
11/17/25
1 Stopover (DEN)
F90689, F92687
09h 16min
Frontier Airlines ?
$241
Best option
Portland-Oregon
Washington DC
Outbound
10/18/25
direct
AS0010
05h 03min
Return
11/17/25
direct
AS0009
05h 57min
Alaska Airlines ?
$335
Portland-Oregon
Washington DC
Outbound
10/18/25
1 Stopover (DEN)
F91790, F90686
26h 59min
Return
11/17/25
1 Stopover (DEN)
F90689, F92687
09h 16min
Frontier Airlines
$255
Portland-Oregon
Washington DC
Outbound
10/18/25
1 Stopover (DEN)
F91790, F90686
26h 59min
Return
11/17/25
1 Stopover (DEN)
F90689, F92687
09h 16min
Frontier Airlines
$266
Portland-Oregon
Washington DC
Outbound
10/18/25
1 Stopover (DEN)
F91790, F90688
07h 56min
Return
11/17/25
direct
AS0009
05h 57min
Frontier Airlines
$281
Portland-Oregon
Washington DC
Outbound
10/18/25
1 Stopover (SAN)
AS1074, AS0014
11h 29min
Return
11/17/25
direct
AS0009
05h 57min
Alaska Airlines ?
$293
Portland-Oregon
Washington DC
Outbound
10/18/25
1 Stopover (SAN)
AS1074, AS0014
11h 29min
Return
11/17/25
direct
AS0009
05h 57min
Alaska Airlines ?
$304
Portland-Oregon
Washington DC
Outbound
09/19/25
direct
AS0010
05h 06min
Return
09/29/25
direct
AS0009
05h 43min
Alaska Airlines ?
$341
Portland-Oregon
Washington DC
Outbound
09/19/25
direct
AS0010
05h 06min
Return
09/29/25
direct
AS0009
05h 43min
Alaska Airlines ?
$354
Portland-Oregon
Washington DC
Outbound
09/04/25
1 Stopover (DEN)
F91790, F90688
07h 56min
Return
09/28/25
1 Stopover (DEN)
F90689, F92687
09h 16min
Frontier Airlines
$360
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Portland Oregon to Washington DC

Favorite airline: e.g. Frontier Airlines, United Airlines
The favorite airline for flights from Portland-Oregon to Washington DC is Frontier Airlines.
Frontier Airlines
33 %
United Airlines
33 %
Alaska Airlines
17 %
Favourite connection: via Denver
The most popular route is via Denver and is booked by 67 % of all travelers.
Route
bookings
1 stopover Denver International Airport, CO
08h 57min, from $271
67 %
1 stopover Hartsfield-Jackson Atlanta International Airport, GA
06h 55min, from $553
33 %

Important flight information

Flight information: Portland-Oregon - Washington DC

Roundtrip from $240.15
Flight duration min. 04:45
Return flight duration min. 06:10/ max. 06:55
Distance 3777 km
Flights per week 8
Departure airport Airport Portland International Airport, Oregon (PDX)
Arrival airport Airport Washington DC - Ronald Reagan National Airport, VA (DCA)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Washington DC
Flight destinations with a similar price
Flight destinations with a similar price