Flights from Portland to Seattle
PDX to SEA. All flight routes from Portland International, USA to Seattle Tacoma International, USA. These routes are operated by 2 different airlines. You can either fly non-stop with Alaska Airlines or Delta Air Lines, or choose from 0 different transit flights. The shortest flight time is 1 hour and 4 minutes.
Non-stop with Alaska Airlines. 15-21 flights per day.
Delta Air Lines
Non-stop with Delta Air Lines. 8-9 flights per day.