$95 Cheap Frontier Airlines flights Ontario (ONT) to Phoenix (PHX)

$95 Cheap Frontier Airlines flights Ontario (ONT) to Phoenix (PHX)

Prices were available within the past 7 days and start at $95 for one-way flights and $190 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 20 - Fri, May 23

ONT

Ontario

PHX

Phoenix

$190 Roundtrip, found 9 hours ago

$190

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Tue, May 20 from Ontario to Phoenix, returning Fri, May 23, priced at $190 found 9 hours ago

Wed, May 14 - Mon, May 19

ONT

Ontario

PHX

Phoenix

$191 Roundtrip, found 9 hours ago

$191

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Wed, May 14 from Ontario to Phoenix, returning Mon, May 19, priced at $191 found 9 hours ago

Thu, May 15 - Mon, May 19

ONT

Ontario

PHX

Phoenix

$200 Roundtrip, found 9 hours ago

$200

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Thu, May 15 from Ontario to Phoenix, returning Mon, May 19, priced at $200 found 9 hours ago

Tue, May 13 - Fri, May 16

ONT

Ontario

PHX

Phoenix

$201 Roundtrip, found 9 hours ago

$201

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Tue, May 13 from Ontario to Phoenix, returning Fri, May 16, priced at $201 found 9 hours ago

Sat, May 17 - Sun, May 18

ONT

Ontario

PHX

Phoenix

$210 Roundtrip, found 9 hours ago

$210

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Sat, May 17 from Ontario to Phoenix, returning Sun, May 18, priced at $210 found 9 hours ago

Wed, May 14 - Sun, May 18

ONT

Ontario

PHX

Phoenix

$211 Roundtrip, found 9 hours ago

$211

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Wed, May 14 from Ontario to Phoenix, returning Sun, May 18, priced at $211 found 9 hours ago