Flights from Chicago to Mountain States

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.

Thu, Jul 10 - Mon, Jul 14

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$98 Roundtrip, found 21 hours ago

$98

Roundtrip

found 21 hours ago

Select Spirit Airlines flight, departing Thu, Jul 10 from O'Hare Intl. to Harry Reid Intl., returning Mon, Jul 14, priced at $98 found 21 hours ago

Sat, Jul 12 - Sat, Jul 12

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$103 Roundtrip, found 22 hours ago

$103

Roundtrip

found 22 hours ago

Select Spirit Airlines flight, departing Sat, Jul 12 from O'Hare Intl. to Harry Reid Intl., returning Sat, Jul 12, priced at $103 found 22 hours ago

Sat, Oct 4 - Tue, Oct 7

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$108 Roundtrip, found 1 hour ago

$108

Roundtrip

found 1 hour ago

Select Spirit Airlines flight, departing Sat, Oct 4 from O'Hare Intl. to Harry Reid Intl., returning Tue, Oct 7, priced at $108 found 1 hour ago

Fri, Sep 5 - Mon, Sep 8

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$117 Roundtrip, found 4 days ago

$117

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Fri, Sep 5 from O'Hare Intl. to Harry Reid Intl., returning Mon, Sep 8, priced at $117 found 4 days ago

Sat, Aug 2 - Sat, Aug 2

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$122 Roundtrip, found 3 days ago

$122

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Sat, Aug 2 from O'Hare Intl. to Harry Reid Intl., returning Sat, Aug 2, priced at $122 found 3 days ago

Fri, Sep 5 - Mon, Sep 8

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$126 Roundtrip, found 4 days ago

$126

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, Sep 5 from O'Hare Intl. to Harry Reid Intl., returning Mon, Sep 8, priced at $126 found 4 days ago

Mon, Jun 30 - Wed, Jul 2

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$127 Roundtrip, found 16 hours ago

$127

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Mon, Jun 30 from O'Hare Intl. to Harry Reid Intl., returning Wed, Jul 2, priced at $127 found 16 hours ago

Sun, Sep 21 - Wed, Sep 24

ORD

O'Hare Intl.

DEN

Denver Intl.

$141 Roundtrip, found 19 hours ago

$141

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Sun, Sep 21 from O'Hare Intl. to Denver Intl., returning Wed, Sep 24, priced at $141 found 19 hours ago

Sat, Sep 20 - Tue, Sep 23

ORD

O'Hare Intl.

DEN

Denver Intl.

$157 Roundtrip, found 2 days ago

$157

Roundtrip

found 2 days ago

Select United flight, departing Sat, Sep 20 from O'Hare Intl. to Denver Intl., returning Tue, Sep 23, priced at $157 found 2 days ago

Sat, Sep 20 - Tue, Sep 23

ORD

O'Hare Intl.

DEN

Denver Intl.

$157 Roundtrip, found 2 days ago

$157

Roundtrip

found 2 days ago

Select American Airlines flight, departing Sat, Sep 20 from O'Hare Intl. to Denver Intl., returning Tue, Sep 23, priced at $157 found 2 days ago

Sun, Jun 29 - Mon, Jun 30

MDW

Midway Intl.

LAS

Harry Reid Intl.

$188 Roundtrip, found 2 days ago

$188

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Jun 29 from Midway Intl. to Harry Reid Intl., returning Mon, Jun 30, priced at $188 found 2 days ago

Sat, Oct 4 - Sat, Oct 4

ORD

O'Hare Intl.

DEN

Denver Intl.

$211 Roundtrip, found 1 day ago

$211

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Oct 4 from O'Hare Intl. to Denver Intl., returning Sat, Oct 4, priced at $211 found 1 day ago

Wed, Oct 22 - Wed, Oct 29

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$216 Roundtrip, found 21 hours ago

$216

Roundtrip

found 21 hours ago

Select Alaska Airlines flight, departing Wed, Oct 22 from O'Hare Intl. to Harry Reid Intl., returning Wed, Oct 29, priced at $216 found 21 hours ago

Wed, Oct 15 - Tue, Oct 21

MDW

Midway Intl.

COS

Colorado Springs

$217 Roundtrip, found 6 days ago

$217

Roundtrip

found 6 days ago

Select Delta flight, departing Wed, Oct 15 from Midway Intl. to Colorado Springs, returning Tue, Oct 21, priced at $217 found 6 days ago

Wed, Oct 1 - Tue, Oct 7

MDW

Midway Intl.

DEN

Denver Intl.

$217 Roundtrip, found 1 day ago

$217

Roundtrip

found 1 day ago

Select Delta flight, departing Wed, Oct 1 from Midway Intl. to Denver Intl., returning Tue, Oct 7, priced at $217 found 1 day ago

Fri, Aug 8 - Sat, Aug 16

ORD

O'Hare Intl.

BZN

Bozeman Yellowstone Intl.

$237 Roundtrip, found 1 day ago

$237

Roundtrip

found 1 day ago

Select Delta flight, departing Fri, Aug 8 from O'Hare Intl. to Bozeman Yellowstone Intl., returning Sat, Aug 16, priced at $237 found 1 day ago

Mon, Jul 14 - Wed, Jul 23

ORD

O'Hare Intl.

MSO

Missoula Intl.

$249 Roundtrip, found 16 hours ago

$249

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Mon, Jul 14 from O'Hare Intl. to Missoula Intl., returning Wed, Jul 23, priced at $249 found 16 hours ago

Sun, Oct 26 - Thu, Oct 30

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$283 Roundtrip, found 21 hours ago

$283

Roundtrip

found 21 hours ago

Select Sun Country Airlines flight, departing Sun, Oct 26 from O'Hare Intl. to Harry Reid Intl., returning Thu, Oct 30, priced at $283 found 21 hours ago

Sun, Jul 27 - Mon, Jul 28

ORD

O'Hare Intl.

DEN

Denver Intl.

$325 Roundtrip, found 5 days ago

$325

Roundtrip

found 5 days ago

Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Sun, Jul 27 from O'Hare Intl. to Denver Intl., returning Mon, Jul 28, priced at $325 found 5 days ago

Fri, Sep 5 - Mon, Sep 8

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$343 Roundtrip, found 4 days ago

$343

Roundtrip

found 4 days ago

Select JetBlue Airways flight, departing Fri, Sep 5 from O'Hare Intl. to Harry Reid Intl., returning Mon, Sep 8, priced at $343 found 4 days ago