Flights from Denver to Chicago

Cheapest flights from Denver

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jul 12 - Mon, Jul 14

DEN

Denver Intl.

MDW

Midway Intl.

$116 Roundtrip, found 1 day ago

$116

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Jul 12 from Denver Intl. to Midway Intl., returning Mon, Jul 14, priced at $116 found 1 day ago

Thu, Jul 10 - Tue, Jul 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$116 Roundtrip, found 1 day ago

$116

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 10 from Denver Intl. to O'Hare Intl., returning Tue, Jul 15, priced at $116 found 1 day ago

Sat, May 31 - Sat, Jun 7

DEN

Denver Intl.

ORD

O'Hare Intl.

$128 Roundtrip, found 2 days ago

$128

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, May 31 from Denver Intl. to O'Hare Intl., returning Sat, Jun 7, priced at $128 found 2 days ago

Mon, Jun 16 - Sat, Jun 21

DEN

Denver Intl.

ORD

O'Hare Intl.

$134 Roundtrip, found 5 days ago

$134

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Jun 16 from Denver Intl. to O'Hare Intl., returning Sat, Jun 21, priced at $134 found 5 days ago

Mon, Jun 2 - Sun, Jun 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$142 Roundtrip, found 2 days ago

$142

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Jun 2 from Denver Intl. to O'Hare Intl., returning Sun, Jun 15, priced at $142 found 2 days ago

Sat, May 31 - Mon, Jun 2

DEN

Denver Intl.

ORD

O'Hare Intl.

$149 Roundtrip, found 3 days ago

$149

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, May 31 from Denver Intl. to O'Hare Intl., returning Mon, Jun 2, priced at $149 found 3 days ago

Mon, Jun 9 - Fri, Jun 13

DEN

Denver Intl.

ORD

O'Hare Intl.

$150 Roundtrip, found 5 days ago

$150

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Jun 9 from Denver Intl. to O'Hare Intl., returning Fri, Jun 13, priced at $150 found 5 days ago

Wed, May 28 - Fri, Jun 6

DEN

Denver Intl.

ORD

O'Hare Intl.

$151 Roundtrip, found 3 days ago

$151

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, May 28 from Denver Intl. to O'Hare Intl., returning Fri, Jun 6, priced at $151 found 3 days ago

Wed, May 28 - Sun, Jun 1

DEN

Denver Intl.

ORD

O'Hare Intl.

$152 Roundtrip, found 3 days ago

$152

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, May 28 from Denver Intl. to O'Hare Intl., returning Sun, Jun 1, priced at $152 found 3 days ago

Fri, Jun 6 - Sat, Jun 14

DEN

Denver Intl.

ORD

O'Hare Intl.

$153 Roundtrip, found 5 days ago

$153

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Jun 6 from Denver Intl. to O'Hare Intl., returning Sat, Jun 14, priced at $153 found 5 days ago

Mon, Jun 16 - Sat, Jun 21

DEN

Denver Intl.

ORD

O'Hare Intl.

$157 Roundtrip, found 5 days ago

$157

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Jun 16 from Denver Intl. to O'Hare Intl., returning Sat, Jun 21, priced at $157 found 5 days ago

Mon, Jun 23 - Sun, Jun 29

DEN

Denver Intl.

ORD

O'Hare Intl.

$158 Roundtrip, found 5 days ago

$158

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Jun 23 from Denver Intl. to O'Hare Intl., returning Sun, Jun 29, priced at $158 found 5 days ago

Wed, Jul 9 - Sat, Jul 12

DEN

Denver Intl.

ORD

O'Hare Intl.

$159 Roundtrip, found 1 day ago

$159

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jul 9 from Denver Intl. to O'Hare Intl., returning Sat, Jul 12, priced at $159 found 1 day ago

Wed, May 14 - Sat, May 24

DEN

Denver Intl.

ORD

O'Hare Intl.

$161 Roundtrip, found 10 hours ago

$161

Roundtrip

found 10 hours ago

Select Frontier Airlines flight, departing Wed, May 14 from Denver Intl. to O'Hare Intl., returning Sat, May 24, priced at $161 found 10 hours ago

Sat, May 31 - Mon, Jun 2

DEN

Denver Intl.

ORD

O'Hare Intl.

$169 Roundtrip, found 3 days ago

$169

Roundtrip

found 3 days ago

Select American Airlines flight, departing Sat, May 31 from Denver Intl. to O'Hare Intl., returning Mon, Jun 2, priced at $169 found 3 days ago

Sat, May 31 - Mon, Jun 2

DEN

Denver Intl.

ORD

O'Hare Intl.

$169 Roundtrip, found 3 days ago

$169

Roundtrip

found 3 days ago

Select United flight, departing Sat, May 31 from Denver Intl. to O'Hare Intl., returning Mon, Jun 2, priced at $169 found 3 days ago

Sat, Jul 12 - Sat, Jul 12

DEN

Denver Intl.

ORD

O'Hare Intl.

$211 Roundtrip, found 1 day ago

$211

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Jul 12 from Denver Intl. to O'Hare Intl., returning Sat, Jul 12, priced at $211 found 1 day ago

Tue, Jun 10 - Tue, Jun 17

COS

Colorado Springs

MDW

Midway Intl.

$247 Roundtrip, found 3 days ago

$247

Roundtrip

found 3 days ago

Select Delta flight, departing Tue, Jun 10 from Colorado Springs to Midway Intl., returning Tue, Jun 17, priced at $247 found 3 days ago

Fri, Jun 13 - Sun, Jun 15

COS

Colorado Springs

ORD

O'Hare Intl.

$303 Roundtrip, found 6 days ago

$303

Roundtrip

found 6 days ago

Select United flight, departing Fri, Jun 13 from Colorado Springs to O'Hare Intl., returning Sun, Jun 15, priced at $303 found 6 days ago

Wed, Jul 9 - Sun, Jul 13

DEN

Denver Intl.

ORD

O'Hare Intl.

$325 Roundtrip, found 1 day ago

$325

Roundtrip

found 1 day ago

Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Wed, Jul 9 from Denver Intl. to O'Hare Intl., returning Sun, Jul 13, priced at $325 found 1 day ago