$75 Cheap Frontier Airlines flights Ontario (ONT) to Phoenix (PHX)

$75 Cheap Frontier Airlines flights Ontario (ONT) to Phoenix (PHX)

Prices were available within the past 7 days and start at $75 for one-way flights and $150 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Apr 21 - Wed, Apr 22

ONT

Ontario

PHX

Phoenix

$150 Roundtrip, found 5 days ago

$150

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Apr 21 from Ontario to Phoenix, returning Wed, Apr 22, priced at $150 found 5 days ago

Tue, Apr 21 - Sat, Apr 25

ONT

Ontario

PHX

Phoenix

$170 Roundtrip, found 5 days ago

$170

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Apr 21 from Ontario to Phoenix, returning Sat, Apr 25, priced at $170 found 5 days ago

Tue, Apr 21 - Fri, May 1

ONT

Ontario

PHX

Phoenix

$191 Roundtrip, found 5 days ago

$191

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Apr 21 from Ontario to Phoenix, returning Fri, May 1, priced at $191 found 5 days ago

Fri, Apr 24 - Sun, Apr 26

ONT

Ontario

PHX

Phoenix

$235 Roundtrip, found 5 days ago

$235

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Apr 24 from Ontario to Phoenix, returning Sun, Apr 26, priced at $235 found 5 days ago

Fri, Apr 24 - Sun, Apr 26

ONT

Ontario

PHX

Phoenix

$256 Roundtrip, found 5 days ago

$256

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Apr 24 from Ontario to Phoenix, returning Sun, Apr 26, priced at $256 found 5 days ago

Wed, Apr 8 - Mon, Apr 20

ONT

Ontario

PHX

Phoenix

$280 Roundtrip, found 15 hours ago

$280

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Wed, Apr 8 from Ontario to Phoenix, returning Mon, Apr 20, priced at $280 found 15 hours ago