Cheap flights from Chicago to Blake Island from CA $122

View CA $122 flight on Sat, Aug. 30, 2025Opens in a new window

Popular airlines from Chicago to Blake Island

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • Spirit Airlines

    Spirit Airlines

  • American Airlines

    American Airlines

  • United

    United

  • JetBlue Airways

    JetBlue Airways

  • Hawaiian Airlines

    Hawaiian Airlines

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Cheap flights from Chicago (CHI) to Blake Island (SEA)

Prices were available within the past 7 days and start at CA $122 for one-way flights and CA $250 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Aug. 30 - Sat, Sep. 6
ORD
Chicago
SEA
Seattle
CA $250 Roundtrip, found 4 hours ago
CA $250
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Aug. 30 from Chicago to Seattle, returning Sat, Sep. 6, priced at CA $250 found 4 hours ago
Delta
Sat, Aug. 30 - Sat, Sep. 6
ORD
Chicago
SEA
Seattle
CA $251 Roundtrip, found 4 hours ago
CA $251
Roundtrip
found 4 hours ago
Select Delta flight, departing Sat, Aug. 30 from Chicago to Seattle, returning Sat, Sep. 6, priced at CA $251 found 4 hours ago
Hawaiian Airlines
Sat, Aug. 30 - Sat, Sep. 13
ORD
Chicago
SEA
Seattle
CA $251 Roundtrip, found 1 day ago
CA $251
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sat, Aug. 30 from Chicago to Seattle, returning Sat, Sep. 13, priced at CA $251 found 1 day ago
Alaska Airlines
Sat, Aug. 30 - Sat, Sep. 6
ORD
Chicago
SEA
Seattle
CA $253 Roundtrip, found 4 hours ago
CA $253
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Aug. 30 from Chicago to Seattle, returning Sat, Sep. 6, priced at CA $253 found 4 hours ago
American Airlines
Sat, Aug. 16 - Tue, Aug. 26
ORD
Chicago
SEA
Seattle
CA $258 Roundtrip, found 3 days ago
CA $258
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Aug. 16 from Chicago to Seattle, returning Tue, Aug. 26, priced at CA $258 found 3 days ago
Spirit Airlines
Wed, Jul. 30 - Wed, Aug. 6
ORD
Chicago
SEA
Seattle
CA $275 Roundtrip, found 3 hours ago
CA $275
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Wed, Jul. 30 from Chicago to Seattle, returning Wed, Aug. 6, priced at CA $275 found 3 hours ago

Find the cheapest month to fly from Chicago (CHI) to Seattle (SEA)

September is typically the cheapest month to fly

From CA $133 - CA $306 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.