Cheap flights from Phoenix to Cascade Loop Scenic Byway

View AU$146 flight on Sat, 24 Jan. 2026Opens in a new window

Popular airlines from Phoenix to Cascade Loop Scenic Byway

  • American Airlines

    American Airlines

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • United

    United

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Cheap Flights from Phoenix (PHX) 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
Fri., 8 Aug. - Fri., 15 Aug.
PHX
Phoenix
PAE
Seattle
AU$260 Return, found 1 day ago
AU$260
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri., 8 Aug. from Phoenix to Seattle, returning Fri., 15 Aug., priced at AU$260 found 1 day ago
Alaska Airlines
Sat., 5 Jul. - Sat., 12 Jul.
PHX
Phoenix
PAE
Seattle
AU$362 Return, found 2 days ago
AU$362
Return
found 2 days ago
Select Alaska Airlines flight, departing Sat., 5 Jul. from Phoenix to Seattle, returning Sat., 12 Jul., priced at AU$362 found 2 days ago
Alaska Airlines
Sat., 5 Jul. - Wed., 9 Jul.
PHX
Phoenix
PAE
Seattle
AU$393 Return, found 2 days ago
AU$393
Return
found 2 days ago
Select Alaska Airlines flight, departing Sat., 5 Jul. from Phoenix to Seattle, returning Wed., 9 Jul., priced at AU$393 found 2 days ago
Alaska Airlines
Fri., 8 Aug. - Fri., 15 Aug.
PHX
Phoenix
PAE
Seattle
AU$400 Return, found 1 day ago
AU$400
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri., 8 Aug. from Phoenix to Seattle, returning Fri., 15 Aug., priced at AU$400 found 1 day ago
Alaska Airlines
Sat., 5 Jul. - Wed., 9 Jul.
PHX
Phoenix
PAE
Seattle
AU$438 Return, found 2 days ago
AU$438
Return
found 2 days ago
Select Alaska Airlines flight, departing Sat., 5 Jul. from Phoenix to Seattle, returning Wed., 9 Jul., priced at AU$438 found 2 days ago
American Airlines
Sat., 5 Jul. - Sat., 12 Jul.
PHX
Phoenix
PAE
Seattle
AU$779 Return, found 2 days ago
AU$779
Return
found 2 days ago
Select American Airlines flight, departing Sat., 5 Jul. from Phoenix to Seattle, returning Sat., 12 Jul., priced at AU$779 found 2 days ago

Find the cheapest month to fly from Phoenix (PHX) to Seattle (SEA)

January is typically the cheapest month to fly

From AU$73 - AU$355 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.