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

Friday, December 18th, 2026

3 round-trip options

Returning
Fri, Dec 25, 20267 Day Trip
$1,097 USD
Returning
Sun, Dec 27, 20269 Day Trip
$1,468 USD
Returning
Thu, Dec 31, 202613 Day Trip
$1,143 USD