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

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

Prices were available within the past 7 days and start at for one-way flights and $68 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jan 15 - Thu, Jan 22

DEN

Denver

ORD

Chicago

$68 Roundtrip, found 10 hours ago

$68

Roundtrip

found 10 hours ago

Select Frontier Airlines flight, departing Thu, Jan 15 from Denver to Chicago, returning Thu, Jan 22, priced at $68 found 10 hours ago

Thu, Jan 15 - Sun, Jan 25

DEN

Denver

ORD

Chicago

$83 Roundtrip, found 10 hours ago

$83

Roundtrip

found 10 hours ago

Select Frontier Airlines flight, departing Thu, Jan 15 from Denver to Chicago, returning Sun, Jan 25, priced at $83 found 10 hours ago

Mon, Dec 29 - Thu, Jan 8

DEN

Denver

ORD

Chicago

$87 Roundtrip, found 3 days ago

$87

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Dec 29 from Denver to Chicago, returning Thu, Jan 8, priced at $87 found 3 days ago

Thu, Dec 11 - Mon, Dec 15

DEN

Denver

ORD

Chicago

$89 Roundtrip, found 3 days ago

$89

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Dec 11 from Denver to Chicago, returning Mon, Dec 15, priced at $89 found 3 days ago

Mon, Jan 12 - Thu, Jan 22

DEN

Denver

ORD

Chicago

$94 Roundtrip, found 10 hours ago

$94

Roundtrip

found 10 hours ago

Select Frontier Airlines flight, departing Mon, Jan 12 from Denver to Chicago, returning Thu, Jan 22, priced at $94 found 10 hours ago

Thu, Jan 8 - Thu, Jan 15

DEN

Denver

ORD

Chicago

$97 Roundtrip, found 2 days ago

$97

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Jan 8 from Denver to Chicago, returning Thu, Jan 15, priced at $97 found 2 days ago

Wed, Dec 10 - Mon, Dec 15

DEN

Denver

ORD

Chicago

$100 Roundtrip, found 3 days ago

$100

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Dec 10 from Denver to Chicago, returning Mon, Dec 15, priced at $100 found 3 days ago

Sun, Jan 18 - Thu, Jan 22

DEN

Denver

ORD

Chicago

$105 Roundtrip, found 10 hours ago

$105

Roundtrip

found 10 hours ago

Select Frontier Airlines flight, departing Sun, Jan 18 from Denver to Chicago, returning Thu, Jan 22, priced at $105 found 10 hours ago

Thu, Dec 4 - Fri, Dec 12

DEN

Denver

ORD

Chicago

$108 Roundtrip, found 1 day ago

$108

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Dec 4 from Denver to Chicago, returning Fri, Dec 12, priced at $108 found 1 day ago

Mon, Jan 12 - Sun, Jan 25

DEN

Denver

ORD

Chicago

$109 Roundtrip, found 10 hours ago

$109

Roundtrip

found 10 hours ago

Select Frontier Airlines flight, departing Mon, Jan 12 from Denver to Chicago, returning Sun, Jan 25, priced at $109 found 10 hours ago

Thu, Dec 4 - Thu, Dec 11

DEN

Denver

ORD

Chicago

$110 Roundtrip, found 1 day ago

$110

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Dec 4 from Denver to Chicago, returning Thu, Dec 11, priced at $110 found 1 day ago

Tue, Dec 2 - Mon, Dec 15

DEN

Denver

ORD

Chicago

$111 Roundtrip, found 1 day ago

$111

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Dec 2 from Denver to Chicago, returning Mon, Dec 15, priced at $111 found 1 day ago