$45 Cheap Frontier Airlines flights Philadelphia (PHL) to Chicago (ORD)

$45 Cheap Frontier Airlines flights Philadelphia (PHL) to Chicago (ORD)

Prices were available within the past 7 days and start at $45 for one-way flights and $128 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jul 25 - Sat, Aug 8

PHL

Philadelphia

ORD

Chicago

$128 Roundtrip, found 4 days ago

$128

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, Jul 25 from Philadelphia to Chicago, returning Sat, Aug 8, priced at $128 found 4 days ago

Sat, Jun 27 - Sat, Jul 11

PHL

Philadelphia

ORD

Chicago

$138 Roundtrip, found 4 days ago

$138

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, Jun 27 from Philadelphia to Chicago, returning Sat, Jul 11, priced at $138 found 4 days ago

Sat, Jul 11 - Sat, Jul 25

PHL

Philadelphia

ORD

Chicago

$148 Roundtrip, found 4 days ago

$148

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, Jul 11 from Philadelphia to Chicago, returning Sat, Jul 25, priced at $148 found 4 days ago

Mon, Jun 8 - Sat, Jun 13

PHL

Philadelphia

ORD

Chicago

$158 Roundtrip, found 4 days ago

$158

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Jun 8 from Philadelphia to Chicago, returning Sat, Jun 13, priced at $158 found 4 days ago

Sat, Jun 27 - Thu, Jul 9

PHL

Philadelphia

ORD

Chicago

$168 Roundtrip, found 4 days ago

$168

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, Jun 27 from Philadelphia to Chicago, returning Thu, Jul 9, priced at $168 found 4 days ago

Sun, May 24 - Sat, May 30

PHL

Philadelphia

ORD

Chicago

$170 Roundtrip, found 14 hours ago

$170

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Sun, May 24 from Philadelphia to Chicago, returning Sat, May 30, priced at $170 found 14 hours ago