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.

Sun, Aug 24 - Fri, Aug 29

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$98 Roundtrip, found 1 day ago

$98

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Aug 24 from O'Hare Intl. to Harry Reid Intl., returning Fri, Aug 29, priced at $98 found 1 day ago

Sat, Aug 2 - Sun, Aug 3

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$103 Roundtrip, found 2 days ago

$103

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sat, Aug 2 from O'Hare Intl. to Harry Reid Intl., returning Sun, Aug 3, priced at $103 found 2 days ago

Tue, Aug 5 - Sat, Aug 9

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$106 Roundtrip, found 5 days ago

$106

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Tue, Aug 5 from O'Hare Intl. to Harry Reid Intl., returning Sat, Aug 9, priced at $106 found 5 days ago

Mon, Sep 22 - Sat, Sep 27

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$108 Roundtrip, found 1 day ago

$108

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Mon, Sep 22 from O'Hare Intl. to Harry Reid Intl., returning Sat, Sep 27, priced at $108 found 1 day ago

Sat, Aug 9 - Sun, Aug 10

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$111 Roundtrip, found 5 days ago

$111

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Sat, Aug 9 from O'Hare Intl. to Harry Reid Intl., returning Sun, Aug 10, priced at $111 found 5 days ago

Thu, Aug 21 - Sun, Aug 24

ORD

O'Hare Intl.

DEN

Denver Intl.

$143 Roundtrip, found 2 hours ago

$143

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Thu, Aug 21 from O'Hare Intl. to Denver Intl., returning Sun, Aug 24, priced at $143 found 2 hours ago

Wed, Aug 6 - Wed, Aug 13

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$145 Roundtrip, found 5 days ago

$145

Roundtrip

found 5 days ago

Select United flight, departing Wed, Aug 6 from O'Hare Intl. to Harry Reid Intl., returning Wed, Aug 13, priced at $145 found 5 days ago

Tue, Aug 5 - Sat, Aug 9

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$145 Roundtrip, found 5 days ago

$145

Roundtrip

found 5 days ago

Select American Airlines flight, departing Tue, Aug 5 from O'Hare Intl. to Harry Reid Intl., returning Sat, Aug 9, priced at $145 found 5 days ago

Mon, Aug 25 - Fri, Aug 29

MDW

Midway Intl.

DEN

Denver Intl.

$166 Roundtrip, found 6 days ago

$166

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Aug 25 from Midway Intl. to Denver Intl., returning Fri, Aug 29, priced at $166 found 6 days ago

Sun, Jun 29 - Mon, Jun 30

MDW

Midway Intl.

LAS

Harry Reid Intl.

$188 Roundtrip, found 18 hours ago

$188

Roundtrip

found 18 hours ago

Select Frontier Airlines flight, departing Sun, Jun 29 from Midway Intl. to Harry Reid Intl., returning Mon, Jun 30, priced at $188 found 18 hours ago

Fri, Aug 15 - Mon, Aug 18

ORD

O'Hare Intl.

SLC

Salt Lake City Intl.

$194 Roundtrip, found 5 days ago

$194

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Fri, Aug 15 from O'Hare Intl. to Salt Lake City Intl., returning Mon, Aug 18, priced at $194 found 5 days ago

Mon, Oct 13 - Wed, Oct 22

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$207 Roundtrip, found 6 days ago

$207

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Mon, Oct 13 from O'Hare Intl. to Harry Reid Intl., returning Wed, Oct 22, priced at $207 found 6 days ago

Wed, Oct 15 - Tue, Oct 21

MDW

Midway Intl.

COS

Colorado Springs

$217 Roundtrip, found 5 days ago

$217

Roundtrip

found 5 days ago

Select Delta flight, departing Wed, Oct 15 from Midway Intl. to Colorado Springs, returning Tue, Oct 21, priced at $217 found 5 days ago

Tue, Jul 8 - Sat, Jul 12

ORD

O'Hare Intl.

DEN

Denver Intl.

$217 Roundtrip, found 1 day ago

$217

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Jul 8 from O'Hare Intl. to Denver Intl., returning Sat, Jul 12, priced at $217 found 1 day ago

Tue, Aug 5 - Sat, Aug 9

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$220 Roundtrip, found 5 days ago

$220

Roundtrip

found 5 days ago

Select Alaska Airlines flight, departing Tue, Aug 5 from O'Hare Intl. to Harry Reid Intl., returning Sat, Aug 9, priced at $220 found 5 days ago

Tue, Jul 15 - Wed, Jul 23

ORD

O'Hare Intl.

MSO

Missoula Intl.

$237 Roundtrip, found 6 days ago

$237

Roundtrip

found 6 days ago

Select Delta flight, departing Tue, Jul 15 from O'Hare Intl. to Missoula Intl., returning Wed, Jul 23, priced at $237 found 6 days ago

Fri, Aug 8 - Sat, Aug 16

ORD

O'Hare Intl.

BZN

Bozeman Yellowstone Intl.

$237 Roundtrip, found 12 hours ago

$237

Roundtrip

found 12 hours ago

Select Delta flight, departing Fri, Aug 8 from O'Hare Intl. to Bozeman Yellowstone Intl., returning Sat, Aug 16, priced at $237 found 12 hours ago

Sun, Jul 27 - Mon, Jul 28

ORD

O'Hare Intl.

DEN

Denver Intl.

$325 Roundtrip, found 4 days ago

$325

Roundtrip

found 4 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 4 days ago

Fri, Sep 5 - Mon, Sep 8

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$343 Roundtrip, found 3 days ago

$343

Roundtrip

found 3 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 3 days ago

Wed, Jul 16 - Tue, Jul 22

MDW

Midway Intl.

MSO

Missoula Intl.

$509 Roundtrip, found 6 days ago

$509

Roundtrip

found 6 days ago

Select Delta flight, departing Wed, Jul 16 from Midway Intl. to Missoula Intl., returning Tue, Jul 22, priced at $509 found 6 days ago