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

Monday, August 3rd, 2026

8 round-trip options

Returning
Mon, Aug 10, 20267 Day Trip
$804 USD
Returning
Tue, Aug 11, 20268 Day Trip
$558 USD
Returning
Wed, Aug 12, 20269 Day Trip
$509 USD
Returning
Thu, Aug 13, 202610 Day Trip
$533 USD
Returning
Fri, Aug 14, 202611 Day Trip
$531 USD
Returning
Sat, Aug 15, 202612 Day Trip
$589 USD
Returning
Sun, Aug 16, 202613 Day Trip
$629 USD
Returning
Mon, Aug 17, 202614 Day Trip
$598 USD