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
Washington to Portland monthly flight fare trend
Jul
from USD 311
Aug
from USD 155
Sep
No flights
Oct
No flights
Nov
No flights
Dec
No flights
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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