$102 Cheap Frontier Airlines flights Philadelphia (PHL) to Ontario (ONT)

$102 Cheap Frontier Airlines flights Philadelphia (PHL) to Ontario (ONT)

Prices were available within the past 7 days and start at $102 for one-way flights and $204 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Oct 30 - Wed, Nov 5

PHL

Philadelphia

ONT

Ontario

$204 Roundtrip, found 2 days ago

$204

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Oct 30 from Philadelphia to Ontario, returning Wed, Nov 5, priced at $204 found 2 days ago

Fri, Oct 31 - Sun, Nov 9

PHL

Philadelphia

ONT

Ontario

$223 Roundtrip, found 2 days ago

$223

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Oct 31 from Philadelphia to Ontario, returning Sun, Nov 9, priced at $223 found 2 days ago

Thu, Oct 9 - Sun, Oct 12

PHL

Philadelphia

ONT

Ontario

$380 Roundtrip, found 6 days ago

$380

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Oct 9 from Philadelphia to Ontario, returning Sun, Oct 12, priced at $380 found 6 days ago

Thu, Oct 9 - Sun, Oct 12

PHL

Philadelphia

ONT

Ontario

$419 Roundtrip, found 6 days ago

$419

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Oct 9 from Philadelphia to Ontario, returning Sun, Oct 12, priced at $419 found 6 days ago