Cheap flights from San Francisco to Cascade Loop Scenic Byway

View AU$137 flight on Sat, 20 Sep. 2025Opens in a new window

Popular airlines from San Francisco to Cascade Loop Scenic Byway

  • Alaska Airlines

    Alaska Airlines

  • Frontier Airlines

    Frontier Airlines

  • American Airlines

    American Airlines

  • Delta

    Delta

  • Southwest Airlines

    Southwest Airlines

  • United

    United

  • Spirit Airlines

    Spirit Airlines

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Cheap Flights from San Francisco (SJC) to Cascade Loop Scenic Byway (SEA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, 20 Sep. - Sat, 27 Sep.
SFO
San Francisco
PAE
Seattle
AU$208 Return, found 6 days ago
AU$208
Return
found 6 days ago
Select Alaska Airlines flight, departing Sat, 20 Sep. from San Francisco to Seattle, returning Sat, 27 Sep., priced at AU$208 found 6 days ago
Alaska Airlines
Sat, 13 Sep. - Sat, 20 Sep.
SFO
San Francisco
PAE
Seattle
AU$210 Return, found 3 days ago
AU$210
Return
found 3 days ago
Select Alaska Airlines flight, departing Sat, 13 Sep. from San Francisco to Seattle, returning Sat, 20 Sep., priced at AU$210 found 3 days ago
Alaska Airlines
Tue, 16 Sep. - Tue, 23 Sep.
SFO
San Francisco
PAE
Seattle
AU$213 Return, found 1 day ago
AU$213
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 16 Sep. from San Francisco to Seattle, returning Tue, 23 Sep., priced at AU$213 found 1 day ago
Hawaiian Airlines
Mon, 13 Oct. - Tue, 28 Oct.
SFO
San Francisco
PAE
Seattle
AU$229 Return, found 19 hours ago
AU$229
Return
found 19 hours ago
Select Hawaiian Airlines flight, departing Mon, 13 Oct. from San Francisco to Seattle, returning Tue, 28 Oct., priced at AU$229 found 19 hours ago
Hawaiian Airlines
Mon, 15 Sep. - Thu, 2 Oct.
SFO
San Francisco
PAE
Seattle
AU$238 Return, found 5 days ago
AU$238
Return
found 5 days ago
Select Hawaiian Airlines flight, departing Mon, 15 Sep. from San Francisco to Seattle, returning Thu, 2 Oct., priced at AU$238 found 5 days ago
American Airlines
Tue, 16 Jun. - Tue, 23 Jun.
SFO
San Francisco
PAE
Seattle
AU$453 Return, found 4 days ago
AU$453
Return
found 4 days ago
Select American Airlines flight, departing Tue, 16 Jun. from San Francisco to Seattle, returning Tue, 23 Jun., priced at AU$453 found 4 days ago

Find the cheapest month to fly from San Francisco (SFO) to Seattle (SEA)

January is typically the cheapest month to fly

From AU$148 - AU$287 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.