$115 Cheap Frontier Airlines flights Phoenix (PHX) to Ontario (ONT)

$115 Cheap Frontier Airlines flights Phoenix (PHX) to Ontario (ONT)

Prices were available within the past 7 days and start at $115 for one-way flights and $160 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Mar 31 - Sat, Apr 4

PHX

Phoenix

ONT

Ontario

$160 Roundtrip, found 4 days ago

$160

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Mar 31 from Phoenix to Ontario, returning Sat, Apr 4, priced at $160 found 4 days ago

Tue, Mar 31 - Fri, Apr 10

PHX

Phoenix

ONT

Ontario

$180 Roundtrip, found 4 days ago

$180

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Mar 31 from Phoenix to Ontario, returning Fri, Apr 10, priced at $180 found 4 days ago

Thu, Apr 2 - Tue, Apr 7

PHX

Phoenix

ONT

Ontario

$195 Roundtrip, found 4 days ago

$195

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Apr 2 from Phoenix to Ontario, returning Tue, Apr 7, priced at $195 found 4 days ago

Thu, Apr 2 - Tue, Apr 7

PHX

Phoenix

ONT

Ontario

$201 Roundtrip, found 4 days ago

$201

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Apr 2 from Phoenix to Ontario, returning Tue, Apr 7, priced at $201 found 4 days ago

Thu, Apr 2 - Tue, Apr 7

PHX

Phoenix

ONT

Ontario

$207 Roundtrip, found 4 days ago

$207

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Apr 2 from Phoenix to Ontario, returning Tue, Apr 7, priced at $207 found 4 days ago

Mon, Mar 30 - Fri, Apr 10

PHX

Phoenix

ONT

Ontario

$215 Roundtrip, found 4 days ago

$215

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Mar 30 from Phoenix to Ontario, returning Fri, Apr 10, priced at $215 found 4 days ago