$51 Cheap Frontier Airlines flights Denver (DEN) to Chicago (ORD)

$51 Cheap Frontier Airlines flights Denver (DEN) to Chicago (ORD)

Prices were available within the past 7 days and start at $51 for one-way flights and $98 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 22 - Wed, Sep 23

DEN

Denver

ORD

Chicago

$98 Roundtrip, found 1 day ago

$98

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Sep 22 from Denver to Chicago, returning Wed, Sep 23, priced at $98 found 1 day ago

Thu, Oct 8 - Wed, Oct 21

DEN

Denver

ORD

Chicago

$100 Roundtrip, found 6 days ago

$100

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Oct 8 from Denver to Chicago, returning Wed, Oct 21, priced at $100 found 6 days ago

Tue, Sep 22 - Sat, Sep 26

DEN

Denver

ORD

Chicago

$108 Roundtrip, found 1 day ago

$108

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Sep 22 from Denver to Chicago, returning Sat, Sep 26, priced at $108 found 1 day ago

Fri, Oct 2 - Wed, Oct 21

DEN

Denver

ORD

Chicago

$122 Roundtrip, found 6 days ago

$122

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, Oct 2 from Denver to Chicago, returning Wed, Oct 21, priced at $122 found 6 days ago

Tue, Jun 2 - Tue, Jun 9

DEN

Denver

ORD

Chicago

$133 Roundtrip, found 5 days ago

$133

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Jun 2 from Denver to Chicago, returning Tue, Jun 9, priced at $133 found 5 days ago

Fri, Jun 19 - Fri, Jun 26

DEN

Denver

ORD

Chicago

$146 Roundtrip, found 5 days ago

$146

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Jun 19 from Denver to Chicago, returning Fri, Jun 26, priced at $146 found 5 days ago