Cheap Frontier Airlines flights Denver (DEN) to Boise (BOI)

Cheap Frontier Airlines flights Denver (DEN) to Boise (BOI)

Prices were available within the past 7 days and start at for one-way flights and $231 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jul 5 - Tue, Jul 7

DEN

Denver

BOI

Boise

$231 Roundtrip, found 1 day ago

$231

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jul 5 from Denver to Boise, returning Tue, Jul 7, priced at $231 found 1 day ago

Sun, Jul 5 - Thu, Jul 9

DEN

Denver

BOI

Boise

$258 Roundtrip, found 1 day ago

$258

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jul 5 from Denver to Boise, returning Thu, Jul 9, priced at $258 found 1 day ago