$33 Cheap Frontier Airlines flights Philadelphia (PHL) to Chicago (CHI)

$33 Cheap Frontier Airlines flights Philadelphia (PHL) to Chicago (CHI)

Prices were available within the past 7 days and start at $33 for one-way flights and $56 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 24 - Mon, Oct 27

PHL

Philadelphia

ORD

Chicago

$56 Roundtrip, just found

$56

Roundtrip

just found

Select Frontier Airlines flight, departing Fri, Oct 24 from Philadelphia to Chicago, returning Mon, Oct 27, priced at $56 just found

Thu, Sep 4 - Sun, Sep 7

PHL

Philadelphia

MDW

Chicago

$62 Roundtrip, just found

$62

Roundtrip

just found

Select Frontier Airlines flight, departing Thu, Sep 4 from Philadelphia to Chicago, returning Sun, Sep 7, priced at $62 just found

Thu, Nov 13 - Sun, Nov 16

PHL

Philadelphia

MDW

Chicago

$75 Roundtrip, found 6 hours ago

$75

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Thu, Nov 13 from Philadelphia to Chicago, returning Sun, Nov 16, priced at $75 found 6 hours ago

Fri, Oct 31 - Sun, Nov 2

PHL

Philadelphia

MDW

Chicago

$80 Roundtrip, found 2 hours ago

$80

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Fri, Oct 31 from Philadelphia to Chicago, returning Sun, Nov 2, priced at $80 found 2 hours ago

Thu, Sep 18 - Mon, Sep 22

PHL

Philadelphia

MDW

Chicago

$81 Roundtrip, just found

$81

Roundtrip

just found

Select Frontier Airlines flight, departing Thu, Sep 18 from Philadelphia to Chicago, returning Mon, Sep 22, priced at $81 just found

Sun, Aug 31 - Mon, Sep 8

PHL

Philadelphia

ORD

Chicago

$82 Roundtrip, found 2 hours ago

$82

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Sun, Aug 31 from Philadelphia to Chicago, returning Mon, Sep 8, priced at $82 found 2 hours ago