Flight Routes from Portland Oregon to Washington DC

Trip type

Our cheapest offers for flights from Portland Oregon to Washington DC

Here you can compare cheap flights from Portland Oregon (PDX) to Washington DC (IAD) 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
06/02/26
1 Stopover (SEA)
AS3038, AS0348
08h 59min
Return
06/09/26
1 Stopover (SEA)
AS0351, AS3080
08h 18min
Alaska Airlines ?
$346
Best option
Portland-Oregon
Washington DC
Outbound
03/26/26
direct
UA2338
04h 53min
Return
03/31/26
1 Stopover (CLT)
AA5543, AA1849
09h 20min
United Airlines ?
$466
Portland-Oregon
Washington DC
Outbound
06/02/26
1 Stopover (SEA)
AS3038, AS0348
08h 59min
Return
06/09/26
1 Stopover (SEA)
AS0351, AS3080
08h 18min
Alaska Airlines ?
$361
Portland-Oregon
Washington DC
Outbound
06/02/26
1 Stopover (SEA)
AS0499, AS0737
08h 33min
Return
06/09/26
1 Stopover (SEA)
AS0737, AS0665
08h 30min
Alaska Airlines ?
$443
Portland-Oregon
Washington DC
Outbound
06/02/26
1 Stopover (SEA)
AS3038, AS0348
08h 59min
Return
06/09/26
1 Stopover (SEA)
AS0351, AS3080
08h 18min
Alaska Airlines ?
$520
Portland-Oregon
Washington DC
Outbound
06/25/26
direct
UA0498
05h 02min
Return
06/30/26
1 Stopover (ORD)
UA2070, UA1994
08h 28min
United Airlines
$536
Portland-Oregon
Washington DC
Outbound
06/25/26
1 Stopover (ORD)
UA1490, UA1689
06h 44min
Return
06/30/26
1 Stopover (ORD)
UA2070, UA1994
08h 28min
United Airlines ?
$544
Portland-Oregon
Washington DC
Outbound
03/26/26
2 Stopovers (DEN, ATL)
F91790, F93600, F91082
33h 27min
Return
03/31/26
2 Stopovers (FLL, SEA)
UA0279, AS0355, AS3282
35h 29min
Frontier Airlines ?
$557
Portland-Oregon
Washington DC
Outbound
06/02/26
1 Stopover (DFW)
AA2283, AA1906
08h 07min
Return
06/09/26
1 Stopover (DFW)
AA1906, AA0685
09h 09min
American Airlines ?
$568
Portland-Oregon
Washington DC
Outbound
06/25/26
2 Stopovers (LAX, ATL)
F94500, F94316, F91082
17h 20min
Return
06/30/26
1 Stopover (LAX)
UA0413, AS0207
30h 41min
Frontier Airlines ?
$680
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: United Airlines
United Airlines is the most popular airline for flights from Portland-Oregon to Washington DC.
United Airlines
43 %
Alaska Airlines
29 %
Spirit Airlines
14 %
Stopover flights are the cheapest connection
Compared to direct flights, flights with a stopover on this route are on average 15 % cheaper.
non stop flight
1 stop
2 stops
04h 58min
29h 29min
12h 17min
$497
$433
$585
Favourite connection: via Seattle-Tacoma
Flights with a stopover in Seattle-Tacoma are the most popular connection for this route.
Route
bookings
1 stopover Seattle-Tacoma International Airport, WA
15h 59min, from $437
50 %
1 stopover Los Angeles International Airport, CA
29h 29min, from $433
33 %
1 stopover Minneapolis - St. Paul International Airport, MN
07h 29min, from $542
17 %

Important flight information

Flight information: Portland-Oregon - Washington DC

Roundtrip from $345.89
Return flight duration min. 06:49/ max. 06:54
Distance 3740 km
Departure airport Airport Portland International Airport, Oregon (PDX)
Arrival airport Airport Washington DC - Dulles International Airport, DC (IAD)
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