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

Friday, August 7th, 2026

8 round-trip options

Returning
Fri, Aug 14, 20267 Day Trip
$591 USD
Returning
Sat, Aug 15, 20268 Day Trip
$640 USD
Returning
Sun, Aug 16, 20269 Day Trip
$684 USD
Returning
Mon, Aug 17, 202610 Day Trip
$629 USD
Returning
Tue, Aug 18, 202611 Day Trip
$484 USD
Returning
Wed, Aug 19, 202612 Day Trip
$498 USD
Returning
Thu, Aug 20, 202613 Day Trip
$538 USD
Returning
Fri, Aug 21, 202614 Day Trip
$569 USD