$216 Cheap Frontier Airlines flights Ontario (ONT) to Boise (BOI)

$216 Cheap Frontier Airlines flights Ontario (ONT) to Boise (BOI)

Prices were available within the past 7 days and start at $216 for one-way flights and $296 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Nov 25 - Thu, Dec 4

ONT

Ontario

BOI

Boise

$296 Roundtrip, found 1 day ago

$296

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Nov 25 from Ontario to Boise, returning Thu, Dec 4, priced at $296 found 1 day ago

Fri, Nov 28 - Thu, Dec 4

ONT

Ontario

BOI

Boise

$310 Roundtrip, found 1 day ago

$310

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Nov 28 from Ontario to Boise, returning Thu, Dec 4, priced at $310 found 1 day ago

Fri, Nov 28 - Fri, Dec 5

ONT

Ontario

BOI

Boise

$370 Roundtrip, found 1 day ago

$370

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Nov 28 from Ontario to Boise, returning Fri, Dec 5, priced at $370 found 1 day ago