$148 Cheap Frontier Airlines flights Ontario (ONT) to Boise (BOI)

$148 Cheap Frontier Airlines flights Ontario (ONT) to Boise (BOI)

Prices were available within the past 7 days and start at $148 for one-way flights and $274 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jul 30 - Sun, Aug 10

ONT

Ontario

BOI

Boise

$274 Roundtrip, found 1 day ago

$274

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jul 30 from Ontario to Boise, returning Sun, Aug 10, priced at $274 found 1 day ago

Sun, Jul 27 - Thu, Aug 7

ONT

Ontario

BOI

Boise

$284 Roundtrip, found 2 days ago

$284

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Jul 27 from Ontario to Boise, returning Thu, Aug 7, priced at $284 found 2 days ago

Sun, Jul 27 - Sun, Aug 3

ONT

Ontario

BOI

Boise

$316 Roundtrip, found 2 days ago

$316

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Jul 27 from Ontario to Boise, returning Sun, Aug 3, priced at $316 found 2 days ago