Cheap Frontier Airlines flights Ontario (ONT) to Boise (BOI)

Cheap Frontier Airlines flights Ontario (ONT) to Boise (BOI)

Prices were available within the past 7 days and start at for one-way flights and $223 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jun 26 - Sun, Jun 29

ONT

Ontario

BOI

Boise

$223 Roundtrip, found 16 hours ago

$223

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Jun 26 from Ontario to Boise, returning Sun, Jun 29, priced at $223 found 16 hours ago

Sun, Jun 22 - Sun, Jun 29

ONT

Ontario

BOI

Boise

$234 Roundtrip, found 16 hours ago

$234

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Sun, Jun 22 from Ontario to Boise, returning Sun, Jun 29, priced at $234 found 16 hours ago