Cheap flights from Boise to Blake Island from CA $107

View CA $107 flight on Sat, Aug. 16, 2025Opens in a new window

Popular airlines from Boise to Blake Island

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • American Airlines

    American Airlines

  • United

    United

  • Hawaiian Airlines

    Hawaiian Airlines

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Cheap flights from Boise (BOI) to Blake Island (SEA)

Prices were available within the past 7 days and start at CA $107 for one-way flights and CA $159 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Wed, Aug. 13 - Wed, Aug. 20
BOI
Boise
SEA
Seattle
CA $159 Roundtrip, found 1 day ago
CA $159
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Wed, Aug. 13 from Boise to Seattle, returning Wed, Aug. 20, priced at CA $159 found 1 day ago
Alaska Airlines
Fri, Aug. 15 - Sat, Aug. 23
BOI
Boise
SEA
Seattle
CA $186 Roundtrip, found 1 day ago
CA $186
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Aug. 15 from Boise to Seattle, returning Sat, Aug. 23, priced at CA $186 found 1 day ago
Delta
Sat, Aug. 16 - Sun, Aug. 17
BOI
Boise
SEA
Seattle
CA $187 Roundtrip, found 21 hours ago
CA $187
Roundtrip
found 21 hours ago
Select Delta flight, departing Sat, Aug. 16 from Boise to Seattle, returning Sun, Aug. 17, priced at CA $187 found 21 hours ago
Alaska Airlines
Sat, Aug. 16 - Sun, Aug. 17
BOI
Boise
SEA
Seattle
CA $213 Roundtrip, found 21 hours ago
CA $213
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Sat, Aug. 16 from Boise to Seattle, returning Sun, Aug. 17, priced at CA $213 found 21 hours ago
United
Fri, Aug. 15 - Sat, Aug. 23
BOI
Boise
SEA
Seattle
CA $321 Roundtrip, found 1 day ago
CA $321
Roundtrip
found 1 day ago
Select United flight, departing Fri, Aug. 15 from Boise to Seattle, returning Sat, Aug. 23, priced at CA $321 found 1 day ago
American Airlines
Thu, Jul. 17 - Sat, Jul. 19
BOI
Boise
SEA
Seattle
CA $1,179 Roundtrip, found 21 hours ago
CA $1,179
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Thu, Jul. 17 from Boise to Seattle, returning Sat, Jul. 19, priced at CA $1,179 found 21 hours ago

Find the cheapest month to fly from Boise (BOI) to Seattle (SEA)

January is typically the cheapest month to fly

From CA $104 - CA $268 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.