$77 Cheap Frontier Airlines flights Phoenix (PHX) to Ontario (ONT)

$77 Cheap Frontier Airlines flights Phoenix (PHX) to Ontario (ONT)

Prices were available within the past 7 days and start at $77 for one-way flights and $154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Nov 13 - Fri, Nov 14

PHX

Phoenix

ONT

Ontario

$154 Roundtrip, found 20 hours ago

$154

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Thu, Nov 13 from Phoenix to Ontario, returning Fri, Nov 14, priced at $154 found 20 hours ago

Mon, Nov 10 - Fri, Nov 14

PHX

Phoenix

ONT

Ontario

$192 Roundtrip, found 20 hours ago

$192

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Mon, Nov 10 from Phoenix to Ontario, returning Fri, Nov 14, priced at $192 found 20 hours ago

Mon, Nov 10 - Fri, Nov 14

PHX

Phoenix

ONT

Ontario

$193 Roundtrip, found 20 hours ago

$193

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Mon, Nov 10 from Phoenix to Ontario, returning Fri, Nov 14, priced at $193 found 20 hours ago

Mon, Nov 10 - Fri, Nov 14

PHX

Phoenix

ONT

Ontario

$194 Roundtrip, found 20 hours ago

$194

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Mon, Nov 10 from Phoenix to Ontario, returning Fri, Nov 14, priced at $194 found 20 hours ago

Wed, Oct 15 - Fri, Oct 17

PHX

Phoenix

ONT

Ontario

$199 Roundtrip, found 22 hours ago

$199

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Wed, Oct 15 from Phoenix to Ontario, returning Fri, Oct 17, priced at $199 found 22 hours ago

Mon, Nov 10 - Fri, Nov 14

PHX

Phoenix

ONT

Ontario

$205 Roundtrip, found 20 hours ago

$205

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Mon, Nov 10 from Phoenix to Ontario, returning Fri, Nov 14, priced at $205 found 20 hours ago