Cheap flights from Toronto to Cascade Loop Scenic Byway from CA $272

View CA $272 flight on Tue, Sep. 30, 2025Opens in a new window

Popular airlines from Toronto to Cascade Loop Scenic Byway

  • WestJet

    WestJet

  • Alaska Airlines

    Alaska Airlines

  • American Airlines

    American Airlines

  • Delta

    Delta

  • Air Canada

    Air Canada

  • United

    United

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Cheap flights from Toronto (YTO) to Cascade Loop Scenic Byway (SEA)

Prices were available within the past 7 days and start at CA $272 for one-way flights and CA $543 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue., Sep. 2 - Thu., Sep. 11
YYZ
Toronto
BLI
Bellingham
CA $543 Roundtrip, found 6 days ago
CA $543
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue., Sep. 2 from Toronto to Bellingham, returning Thu., Sep. 11, priced at CA $543 found 6 days ago
Alaska Airlines
Tue., Aug. 19 - Tue., Sep. 9
YYZ
Toronto
BLI
Bellingham
CA $547 Roundtrip, found 4 days ago
CA $547
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue., Aug. 19 from Toronto to Bellingham, returning Tue., Sep. 9, priced at CA $547 found 4 days ago
Alaska Airlines
Tue., Aug. 19 - Wed., Sep. 10
YYZ
Toronto
BLI
Bellingham
CA $558 Roundtrip, found 4 days ago
CA $558
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue., Aug. 19 from Toronto to Bellingham, returning Wed., Sep. 10, priced at CA $558 found 4 days ago
Porter Airlines
Wed., Aug. 20 - Tue., Aug. 26
YYZ
Toronto
PAE
Seattle
CA $685 Roundtrip, found 3 days ago
CA $685
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Wed., Aug. 20 from Toronto to Seattle, returning Tue., Aug. 26, priced at CA $685 found 3 days ago
American Airlines
Sun., Aug. 24 - Fri., Sep. 5
YYZ
Toronto
BLI
Bellingham
CA $724 Roundtrip, found 4 days ago
CA $724
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun., Aug. 24 from Toronto to Bellingham, returning Fri., Sep. 5, priced at CA $724 found 4 days ago
WestJet
Tue., Sep. 2 - Thu., Sep. 11
YKF
Kitchener
BLI
Bellingham
CA $729 Roundtrip, found 6 days ago
CA $729
Roundtrip
found 6 days ago
Select WestJet flight, departing Tue., Sep. 2 from Kitchener to Bellingham, returning Thu., Sep. 11, priced at CA $729 found 6 days ago

Find the cheapest month to fly from Toronto (YTO) to Seattle (SEA)

May is typically the cheapest month to fly

From CA $243 - CA $431 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.