Cheap Frontier Airlines flights Boise (BOI) to Seattle (SEA)

Cheap Frontier Airlines flights Boise (BOI) to Seattle (SEA)

Prices were available within the past 7 days and start at for one-way flights and $274 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Oct 2 - Wed, Oct 8

BOI

Boise

SEA

Seattle

$274 Roundtrip, found 4 days ago

$274

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Oct 2 from Boise to Seattle, returning Wed, Oct 8, priced at $274 found 4 days ago

Sun, Oct 5 - Wed, Oct 8

BOI

Boise

SEA

Seattle

$306 Roundtrip, found 4 days ago

$306

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sun, Oct 5 from Boise to Seattle, returning Wed, Oct 8, priced at $306 found 4 days ago