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

Monday, October 12th, 2026

6 round-trip options

Returning
Sat, Oct 17, 20265 Day Trip
$552 USD
Returning
Sun, Oct 18, 20266 Day Trip
$658 USD
Returning
Tue, Oct 20, 20268 Day Trip
$486 USD
Returning
Sat, Oct 24, 202612 Day Trip
$552 USD
Returning
Sun, Oct 25, 202613 Day Trip
$628 USD
Returning
Mon, Oct 26, 202614 Day Trip
$552 USD