Seattle / Tacoma (SEA) to Portland (PWM) flight deal in economy from $315

Friday, October 16th, 2026

6 round-trip options

Returning
Wed, Oct 21, 20265 Day Trip
$437 USD
Returning
Thu, Oct 22, 20266 Day Trip
$503 USD
Returning
Sat, Oct 24, 20268 Day Trip
$503 USD
Returning
Wed, Oct 28, 202612 Day Trip
$437 USD
Returning
Thu, Oct 29, 202613 Day Trip
$503 USD
Returning
Fri, Oct 30, 202614 Day Trip
$523 USD