Cheap flights from Seaside

View AU$96 flight on Tue, 22 Sept 2026Opens in a new window

Popular airlines from Seaside

  • Alaska Airlines

  • United

  • American Airlines

  • Delta

  • Southwest Airlines

  • Frontier Airlines

  • Air Canada

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheapest flights from Seaside

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, 14 July - Tue, 28 July
PDX
Portland
SFO
San Francisco
AU$192 Return, found 1 day ago
AU$192
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 14 July from Portland to San Francisco, returning Tue, 28 July, priced at AU$192 found 1 day ago
Alaska Airlines
Tue, 21 July - Thu, 6 Aug
PDX
Portland
SFO
San Francisco
AU$222 Return, found 1 day ago
AU$222
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 21 July from Portland to San Francisco, returning Thu, 6 Aug, priced at AU$222 found 1 day ago
Delta
Wed, 1 July - Tue, 14 July
PDX
Portland
SFO
San Francisco
AU$234 Return, found 16 hours ago
AU$234
Return
found 16 hours ago
Select Delta flight, departing Wed, 1 July from Portland to San Francisco, returning Tue, 14 July, priced at AU$234 found 16 hours ago
Alaska Airlines
Tue, 7 July - Tue, 21 July
PDX
Portland
SFO
San Francisco
AU$248 Return, found 1 day ago
AU$248
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 7 July from Portland to San Francisco, returning Tue, 21 July, priced at AU$248 found 1 day ago
Alaska Airlines
Sat, 22 Aug - Sat, 29 Aug
PDX
Portland
SEA
Seattle
AU$248 Return, found 13 hours ago
AU$248
Return
found 13 hours ago
Select Alaska Airlines flight, departing Sat, 22 Aug from Portland to Seattle, returning Sat, 29 Aug, priced at AU$248 found 13 hours ago
Alaska Airlines
Sat, 22 Aug - Sat, 29 Aug
PDX
Portland
PAE
Seattle
AU$248 Return, found 13 hours ago
AU$248
Return
found 13 hours ago
Select Alaska Airlines flight, departing Sat, 22 Aug from Portland to Seattle, returning Sat, 29 Aug, priced at AU$248 found 13 hours ago
Alaska Airlines
Tue, 14 July - Wed, 15 July
PDX
Portland
SFO
San Francisco
AU$249 Return, found 4 days ago
AU$249
Return
found 4 days ago
Select Alaska Airlines flight, departing Tue, 14 July from Portland to San Francisco, returning Wed, 15 July, priced at AU$249 found 4 days ago
United
Wed, 1 July - Tue, 14 July
PDX
Portland
SFO
San Francisco
AU$269 Return, found 16 hours ago
AU$269
Return
found 16 hours ago
Select United flight, departing Wed, 1 July from Portland to San Francisco, returning Tue, 14 July, priced at AU$269 found 16 hours ago
American Airlines
Sat, 25 July - Wed, 29 July
PDX
Portland
LAX
Los Angeles
AU$292 Return, found 3 days ago
AU$292
Return
found 3 days ago
Select American Airlines flight, departing Sat, 25 July from Portland to Los Angeles, returning Wed, 29 July, priced at AU$292 found 3 days ago
JetBlue Airways
Thu, 23 July - Mon, 10 Aug
PDX
Portland
BOS
Boston
AU$596 Return, found 2 days ago
AU$596
Return
found 2 days ago
Select JetBlue Airways flight, departing Thu, 23 July from Portland to Boston, returning Mon, 10 Aug, priced at AU$596 found 2 days ago

Travel information

Flights from Seaside: Essential Travel Information

Cheapest flight from Seaside
AU$192 (roundtrip)
Best airlines to fly from Seaside
Alaska Airlines, Delta, American Airlines, United, Aeromexico, JetBlue Airways
Cheapest month to fly from Seaside
July
Seaside IATA code
PDX
Seaside Country/State
Oregon
Airline ticket deals from Seaside
AU$192 - AU$596

Explore a world of travel with Expedia

*Available to Expedia members.