Cheap Flights from Seattle (SEA) to Portland (PDX)

    Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards

Cheap Flights from Seattle to Portland (SEA-PDX)

Prices were available within the past 7 days and start at AU$59 for one-way flights and AU$118 for return, for the period specified. Prices and availability are subject to change. Additional terms apply.
Alaska Airlines
Seattle — Portland
SEA - PDX with Alaska Airlines
Fri, 10 Jan
Alaska Airlines
Portland — Seattle
PDX - SEA with Alaska Airlines
Thu, 16 Jan
Found 10 hours ago
Select flight from Seattle to Portland, departing on January 10 with Alaska Airlines, and returning from Portland to Seattle on January 16 with Alaska Airlines. Price from AU$118, Found 10 hours ago.
Alaska Airlines
Seattle — Portland
SEA - PDX with Alaska Airlines
Fri, 10 Jan
Alaska Airlines
Portland — Seattle
PDX - SEA with Alaska Airlines
Thu, 16 Jan
Found 10 hours ago
Select flight from Seattle to Portland, departing on January 10 with Alaska Airlines, and returning from Portland to Seattle on January 16 with Alaska Airlines. Price from AU$164, Found 10 hours ago.
Alaska Airlines
Seattle — Portland
SEA - PDX with Alaska Airlines
Fri, 10 Jan
Alaska Airlines
Portland — Seattle
PDX - SEA with Alaska Airlines
Thu, 16 Jan
Found 10 hours ago
Select flight from Seattle to Portland, departing on January 10 with Alaska Airlines, and returning from Portland to Seattle on January 16 with Alaska Airlines. Price from AU$195, Found 10 hours ago.
Alaska Airlines
Seattle — Portland
SEA - PDX with Alaska Airlines
Fri, 10 Jan
Alaska Airlines
Portland — Seattle
PDX - SEA with Alaska Airlines
Thu, 16 Jan
Found 10 hours ago
Select flight from Seattle to Portland, departing on January 10 with Alaska Airlines, and returning from Portland to Seattle on January 16 with Alaska Airlines. Price from AU$210, Found 10 hours ago.
Beautiful view of the beach with palm trees

Black Friday: Members save 30%+

Members save 30%+ on selected hotels until 4 Dec (property time) with our Black Friday deals. Stay by 15 Dec 2025.
*Available to Expedia members.