Flights to Cascade from Seattle - $51

Cheap Flights from Seattle to Cascade (SEA-BOI)

Prices were available within the past 7 days and start at $51 for one-way flights and $101 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Oct 4 - Tue, Oct 7

SEA

Seattle

BOI

Boise

$101 Roundtrip, found 2 hours ago

$101

Roundtrip

found 2 hours ago

Select Southwest Airlines flight, departing Sat, Oct 4 from Seattle to Boise, returning Tue, Oct 7, priced at $101 found 2 hours ago

Tue, Oct 7 - Wed, Oct 8

SEA

Seattle

BOI

Boise

$106 Roundtrip, found 6 hours ago

$106

Roundtrip

found 6 hours ago

Select Southwest Airlines flight, departing Tue, Oct 7 from Seattle to Boise, returning Wed, Oct 8, priced at $106 found 6 hours ago

Wed, Aug 13 - Tue, Aug 19

SEA

Seattle

BOI

Boise

$117 Roundtrip, just found

$117

Roundtrip

just found

Select Alaska Airlines flight, departing Wed, Aug 13 from Seattle to Boise, returning Tue, Aug 19, priced at $117 just found

Sat, Aug 16 - Wed, Aug 20

SEA

Seattle

BOI

Boise

$117 Roundtrip, found 1 hour ago

$117

Roundtrip

found 1 hour ago

Select Delta flight, departing Sat, Aug 16 from Seattle to Boise, returning Wed, Aug 20, priced at $117 found 1 hour ago

Tue, Aug 12 - Mon, Aug 18

PAE

Seattle

BOI

Boise

$174 Roundtrip, found 16 hours ago

$174

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Tue, Aug 12 from Seattle to Boise, returning Mon, Aug 18, priced at $174 found 16 hours ago

Fri, Aug 22 - Sun, Aug 24

SEA

Seattle

BOI

Boise

$177 Roundtrip, just found

$177

Roundtrip

just found

Select United flight, departing Fri, Aug 22 from Seattle to Boise, returning Sun, Aug 24, priced at $177 just found