$106 Cheap Frontier Airlines flights Ontario Intl. Airport (ONT) to Phoenix (PHX)

$106 Cheap Frontier Airlines flights Ontario Intl. Airport (ONT) to Phoenix (PHX)

Prices were available within the past 7 days and start at $106 for one-way flights and $200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 23 - Wed, Jun 24

ONT

Ontario

PHX

Phoenix

$200 Roundtrip, found 5 days ago

$200

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Jun 23 from Ontario to Phoenix, returning Wed, Jun 24, priced at $200 found 5 days ago

Tue, Jun 23 - Sat, Jun 27

ONT

Ontario

PHX

Phoenix

$214 Roundtrip, found 5 days ago

$214

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Jun 23 from Ontario to Phoenix, returning Sat, Jun 27, priced at $214 found 5 days ago

Thu, Jun 25 - Sat, Jun 27

ONT

Ontario

PHX

Phoenix

$234 Roundtrip, found 5 days ago

$234

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Thu, Jun 25 from Ontario to Phoenix, returning Sat, Jun 27, priced at $234 found 5 days ago

Fri, Jun 26 - Tue, Jun 30

ONT

Ontario

PHX

Phoenix

$240 Roundtrip, found 5 days ago

$240

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Jun 26 from Ontario to Phoenix, returning Tue, Jun 30, priced at $240 found 5 days ago

Fri, Jun 26 - Mon, Jun 29

ONT

Ontario

PHX

Phoenix

$260 Roundtrip, found 5 days ago

$260

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Jun 26 from Ontario to Phoenix, returning Mon, Jun 29, priced at $260 found 5 days ago

Tue, May 19 - Thu, May 21

ONT

Ontario

PHX

Phoenix

$380 Roundtrip, found 20 hours ago

$380

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Tue, May 19 from Ontario to Phoenix, returning Thu, May 21, priced at $380 found 20 hours ago