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 (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
07/25/25
1 Stopover (MSP)
SY0298, SY0223
08h 44min
Return
08/17/25
1 Stopover (SEA)
AS0351, AS1017
08h 50min
Sun Country Airlines ?
$330
Best option
Portland-Oregon
Washington DC
Outbound
09/19/25
direct
UA1322
04h 48min
Return
09/29/25
direct
UA1030
05h 30min
United Airlines ?
$394
Portland-Oregon
Washington DC
Outbound
09/19/25
1 Stopover (SFO)
AS1350, AS0434
09h 29min
Return
09/29/25
1 Stopover (SAN)
AS0507, AS0729
09h 59min
Alaska Airlines ?
$330
Portland-Oregon
Washington DC
Outbound
07/25/25
1 Stopover (MSP)
SY0298, SY0223
08h 44min
Return
08/17/25
1 Stopover (MSP)
SY1694, SY0297
13h 24min
Sun Country Airlines ?
$333
Portland-Oregon
Washington DC
Outbound
09/19/25
1 Stopover (SEA)
AS1016, AS0348
07h 34min
Return
09/29/25
1 Stopover (SEA)
AS0406, AS0498
07h 42min
Alaska Airlines ?
$334
Portland-Oregon
Washington DC
Outbound
07/25/25
1 Stopover (SFO)
AS0526, AS0434
09h 19min
Return
08/17/25
1 Stopover (SEA)
AS0351, AS1017
08h 50min
Alaska Airlines ?
$336
Portland-Oregon
Washington DC
Outbound
07/25/25
1 Stopover (MSP)
SY0296, SY0223
14h 45min
Return
08/17/25
1 Stopover (MSP)
SY1694, SY0297
13h 24min
Sun Country Airlines
$337
Portland-Oregon
Washington DC
Outbound
09/19/25
1 Stopover (SEA)
AS1016, AS0348
07h 34min
Return
09/29/25
1 Stopover (SEA)
AS0406, AS0498
07h 42min
Alaska Airlines
$365
Portland-Oregon
Washington DC
Outbound
07/25/25
direct
UA1265
04h 58min
Return
08/17/25
direct
UA2264
05h 42min
United Airlines ?
$397
Portland-Oregon
Washington DC
Outbound
07/25/25
1 Stopover (SEA)
HA6400, HA6724
08h 58min
Return
08/17/25
1 Stopover (SEA)
HA4967, HA6827
08h 50min
Hawaiian Airlines
$478
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

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