Flights from Chicago to Cascade

Cheapest flights from Chicago

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.

Wed, Jun 25 - Mon, Jun 30

ORD

O'Hare Intl.

DEN

Denver Intl.

$116 Roundtrip, found 20 hours ago

$116

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Wed, Jun 25 from O'Hare Intl. to Denver Intl., returning Mon, Jun 30, priced at $116 found 20 hours ago

Wed, Jun 25 - Sat, Jun 28

ORD

O'Hare Intl.

DEN

Denver Intl.

$123 Roundtrip, found 20 hours ago

$123

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Wed, Jun 25 from O'Hare Intl. to Denver Intl., returning Sat, Jun 28, priced at $123 found 20 hours ago

Sat, Jun 14 - Tue, Jun 17

ORD

O'Hare Intl.

DEN

Denver Intl.

$128 Roundtrip, found 3 days ago

$128

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Jun 14 from O'Hare Intl. to Denver Intl., returning Tue, Jun 17, priced at $128 found 3 days ago

Thu, Jun 12 - Mon, Jun 16

ORD

O'Hare Intl.

DEN

Denver Intl.

$137 Roundtrip, found 3 days ago

$137

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Jun 12 from O'Hare Intl. to Denver Intl., returning Mon, Jun 16, priced at $137 found 3 days ago

Sat, Jun 14 - Sun, Jun 15

ORD

O'Hare Intl.

DEN

Denver Intl.

$142 Roundtrip, found 3 days ago

$142

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Jun 14 from O'Hare Intl. to Denver Intl., returning Sun, Jun 15, priced at $142 found 3 days ago

Fri, Jun 13 - Mon, Jun 16

ORD

O'Hare Intl.

DEN

Denver Intl.

$151 Roundtrip, found 3 days ago

$151

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jun 13 from O'Hare Intl. to Denver Intl., returning Mon, Jun 16, priced at $151 found 3 days ago

Wed, Jun 25 - Tue, Jul 1

ORD

O'Hare Intl.

DEN

Denver Intl.

$154 Roundtrip, found 20 hours ago

$154

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Wed, Jun 25 from O'Hare Intl. to Denver Intl., returning Tue, Jul 1, priced at $154 found 20 hours ago

Fri, Jun 13 - Sun, Jun 15

ORD

O'Hare Intl.

DEN

Denver Intl.

$156 Roundtrip, found 3 days ago

$156

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jun 13 from O'Hare Intl. to Denver Intl., returning Sun, Jun 15, priced at $156 found 3 days ago

Wed, Jun 25 - Fri, Jun 27

ORD

O'Hare Intl.

DEN

Denver Intl.

$157 Roundtrip, found 20 hours ago

$157

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Wed, Jun 25 from O'Hare Intl. to Denver Intl., returning Fri, Jun 27, priced at $157 found 20 hours ago

Sat, Jun 14 - Sat, Jun 14

ORD

O'Hare Intl.

DEN

Denver Intl.

$159 Roundtrip, found 3 days ago

$159

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Jun 14 from O'Hare Intl. to Denver Intl., returning Sat, Jun 14, priced at $159 found 3 days ago

Mon, Jun 16 - Mon, Jun 16

ORD

O'Hare Intl.

DEN

Denver Intl.

$160 Roundtrip, found 3 days ago

$160

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Jun 16 from O'Hare Intl. to Denver Intl., returning Mon, Jun 16, priced at $160 found 3 days ago

Thu, Jun 12 - Mon, Jun 16

ORD

O'Hare Intl.

DEN

Denver Intl.

$162 Roundtrip, found 3 days ago

$162

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Jun 12 from O'Hare Intl. to Denver Intl., returning Mon, Jun 16, priced at $162 found 3 days ago

Wed, Jun 25 - Sun, Jun 29

ORD

O'Hare Intl.

DEN

Denver Intl.

$164 Roundtrip, found 20 hours ago

$164

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Wed, Jun 25 from O'Hare Intl. to Denver Intl., returning Sun, Jun 29, priced at $164 found 20 hours ago

Thu, Jul 10 - Tue, Jul 15

ORD

O'Hare Intl.

DEN

Denver Intl.

$169 Roundtrip, found 5 days ago

$169

Roundtrip

found 5 days ago

Select American Airlines flight, departing Thu, Jul 10 from O'Hare Intl. to Denver Intl., returning Tue, Jul 15, priced at $169 found 5 days ago

Fri, Jun 13 - Mon, Jun 16

ORD

O'Hare Intl.

DEN

Denver Intl.

$171 Roundtrip, found 3 days ago

$171

Roundtrip

found 3 days ago

Select United flight, departing Fri, Jun 13 from O'Hare Intl. to Denver Intl., returning Mon, Jun 16, priced at $171 found 3 days ago

Thu, Jun 12 - Mon, Jun 16

ORD

O'Hare Intl.

DEN

Denver Intl.

$182 Roundtrip, found 3 days ago

$182

Roundtrip

found 3 days ago

Select United flight, departing Thu, Jun 12 from O'Hare Intl. to Denver Intl., returning Mon, Jun 16, priced at $182 found 3 days ago

Fri, Jun 13 - Mon, Jun 16

MDW

Midway Intl.

DEN

Denver Intl.

$216 Roundtrip, found 3 days ago

$216

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jun 13 from Midway Intl. to Denver Intl., returning Mon, Jun 16, priced at $216 found 3 days ago

Tue, Jun 24 - Thu, Jun 26

ORD

O'Hare Intl.

DEN

Denver Intl.

$217 Roundtrip, found 20 hours ago

$217

Roundtrip

found 20 hours ago

Select Delta flight, departing Tue, Jun 24 from O'Hare Intl. to Denver Intl., returning Thu, Jun 26, priced at $217 found 20 hours ago

Tue, Aug 26 - Sat, Aug 30

ORD

O'Hare Intl.

COS

Colorado Springs

$247 Roundtrip, found 1 day ago

$247

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Aug 26 from O'Hare Intl. to Colorado Springs, returning Sat, Aug 30, priced at $247 found 1 day ago

Fri, Jun 13 - Mon, Jun 16

ORD

O'Hare Intl.

DEN

Denver Intl.

$325 Roundtrip, found 3 days ago

$325

Roundtrip

found 3 days ago

Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Fri, Jun 13 from O'Hare Intl. to Denver Intl., returning Mon, Jun 16, priced at $325 found 3 days ago