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

Thursday, October 29th, 2026

6 round-trip options

Returning
Tue, Nov 3, 20265 Day Trip
$381 USD
Returning
Wed, Nov 4, 20266 Day Trip
$381 USD
Returning
Fri, Nov 6, 20268 Day Trip
$467 USD
Returning
Tue, Nov 10, 202612 Day Trip
$381 USD
Returning
Wed, Nov 11, 202613 Day Trip
$381 USD
Returning
Thu, Nov 12, 202614 Day Trip
$447 USD