Washington to Portland

IADPDX

Fly from Washington to Portland starting at USD 155 with Frontier Airlines.Best fare available on Aug 21, 2026.Limited seats. Better plans. Book before it's gone.

Washington to Portland cheapest flights this week

17 Aug
Frontier Airlines
09:50IAD
19:54PDX
1 StopUSD 265VIEW DEAL
21 Aug
Frontier Airlines
08:59IAD
20:21PDX
1 StopUSD 155VIEW DEAL
24 Aug
Alaska Airlines
07:00IAD
16:10PDX
1 StopUSD 177VIEW DEAL
25 Aug
Frontier Airlines
11:05IAD
20:11PDX
2 StopUSD 217VIEW DEAL
26 Aug
Frontier Airlines
11:05IAD
15:52PDX
2 StopUSD 217VIEW DEAL
31 Aug
Mexicana de Aviaci
12:00IAD
20:11PDX
3 StopUSD 171VIEW DEAL
1 Sept
Frontier Airlines
08:59IAD
20:11PDX
2 StopUSD 185VIEW DEAL
8 Sept
Frontier Airlines
20:39IAD
17:27PDX
2 StopUSD 171VIEW DEAL
11 Sept
Frontier Airlines
21:04IAD
13:07PDX
2 StopUSD 212VIEW DEAL
1 Oct
Frontier Airlines
07:50IAD
13:07PDX
2 StopUSD 208VIEW DEAL

Washington to Portland monthly flight fare trend

Aug
from USD 155
Sep
from USD 171
Oct
from USD 208
Nov
No flights
Dec
No flights
Jan
from USD 340

Airport Details

Origin

Washington

Washington Dulles International Airport (IAD)

Dulles, IAD
Zone

New York

Elev

312 ft

Destination

Portland

Portland International Airport (PDX)

Portland, PDX
Zone

Los Angeles

Elev

31 ft

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