Flights from Chicago to Greeley

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, Sep 21 - Wed, Sep 24

ORD

O'Hare Intl.

DEN

Denver Intl.

$141 Roundtrip, found 5 days ago

$141

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Sep 21 from O'Hare Intl. to Denver Intl., returning Wed, Sep 24, priced at $141 found 5 days ago

Wed, Aug 20 - Mon, Aug 25

ORD

O'Hare Intl.

DEN

Denver Intl.

$143 Roundtrip, found 2 days ago

$143

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Aug 20 from O'Hare Intl. to Denver Intl., returning Mon, Aug 25, priced at $143 found 2 days ago

Wed, Aug 13 - Mon, Aug 18

ORD

O'Hare Intl.

DEN

Denver Intl.

$163 Roundtrip, found 16 hours ago

$163

Roundtrip

found 16 hours ago

Select United flight, departing Wed, Aug 13 from O'Hare Intl. to Denver Intl., returning Mon, Aug 18, priced at $163 found 16 hours ago

Wed, Aug 13 - Mon, Aug 18

ORD

O'Hare Intl.

DEN

Denver Intl.

$164 Roundtrip, found 16 hours ago

$164

Roundtrip

found 16 hours ago

Select American Airlines flight, departing Wed, Aug 13 from O'Hare Intl. to Denver Intl., returning Mon, Aug 18, priced at $164 found 16 hours ago

Wed, Aug 13 - Mon, Aug 18

ORD

O'Hare Intl.

DEN

Denver Intl.

$168 Roundtrip, found 16 hours ago

$168

Roundtrip

found 16 hours ago

Select United flight, departing Wed, Aug 13 from O'Hare Intl. to Denver Intl., returning Mon, Aug 18, priced at $168 found 16 hours ago

Wed, Jul 9 - Sun, Jul 13

ORD

O'Hare Intl.

DEN

Denver Intl.

$171 Roundtrip, found 5 days ago

$171

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Wed, Jul 9 from O'Hare Intl. to Denver Intl., returning Sun, Jul 13, priced at $171 found 5 days ago

Sun, Sep 21 - Wed, Sep 24

ORD

O'Hare Intl.

DEN

Denver Intl.

$175 Roundtrip, found 5 days ago

$175

Roundtrip

found 5 days ago

Select United flight, departing Sun, Sep 21 from O'Hare Intl. to Denver Intl., returning Wed, Sep 24, priced at $175 found 5 days ago

Thu, Jul 3 - Mon, Jul 7

ORD

O'Hare Intl.

DEN

Denver Intl.

$179 Roundtrip, found 4 days ago

$179

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Jul 3 from O'Hare Intl. to Denver Intl., returning Mon, Jul 7, priced at $179 found 4 days ago

Wed, Aug 20 - Mon, Aug 25

ORD

O'Hare Intl.

DEN

Denver Intl.

$181 Roundtrip, found 2 days ago

$181

Roundtrip

found 2 days ago

Select American Airlines flight, departing Wed, Aug 20 from O'Hare Intl. to Denver Intl., returning Mon, Aug 25, priced at $181 found 2 days ago

Wed, Aug 13 - Mon, Aug 18

ORD

O'Hare Intl.

DEN

Denver Intl.

$185 Roundtrip, found 16 hours ago

$185

Roundtrip

found 16 hours ago

Select American Airlines flight, departing Wed, Aug 13 from O'Hare Intl. to Denver Intl., returning Mon, Aug 18, priced at $185 found 16 hours ago

Wed, Aug 20 - Mon, Aug 25

ORD

O'Hare Intl.

DEN

Denver Intl.

$193 Roundtrip, found 2 days ago

$193

Roundtrip

found 2 days ago

Select Delta flight, departing Wed, Aug 20 from O'Hare Intl. to Denver Intl., returning Mon, Aug 25, priced at $193 found 2 days ago

Wed, Jul 9 - Sun, Jul 13

ORD

O'Hare Intl.

DEN

Denver Intl.

$194 Roundtrip, found 5 days ago

$194

Roundtrip

found 5 days ago

Select United flight, departing Wed, Jul 9 from O'Hare Intl. to Denver Intl., returning Sun, Jul 13, priced at $194 found 5 days ago

Thu, Aug 21 - Sun, Aug 24

ORD

O'Hare Intl.

DEN

Denver Intl.

$195 Roundtrip, found 5 days ago

$195

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Thu, Aug 21 from O'Hare Intl. to Denver Intl., returning Sun, Aug 24, priced at $195 found 5 days ago

Wed, Aug 13 - Mon, Aug 18

ORD

O'Hare Intl.

DEN

Denver Intl.

$198 Roundtrip, found 16 hours ago

$198

Roundtrip

found 16 hours ago

Select United flight, departing Wed, Aug 13 from O'Hare Intl. to Denver Intl., returning Mon, Aug 18, priced at $198 found 16 hours ago

Thu, Aug 21 - Sun, Aug 24

ORD

O'Hare Intl.

DEN

Denver Intl.

$199 Roundtrip, found 5 days ago

$199

Roundtrip

found 5 days ago

Select American Airlines flight, departing Thu, Aug 21 from O'Hare Intl. to Denver Intl., returning Sun, Aug 24, priced at $199 found 5 days ago

Wed, Aug 13 - Mon, Aug 18

ORD

O'Hare Intl.

DEN

Denver Intl.

$201 Roundtrip, found 16 hours ago

$201

Roundtrip

found 16 hours ago

Select American Airlines flight, departing Wed, Aug 13 from O'Hare Intl. to Denver Intl., returning Mon, Aug 18, priced at $201 found 16 hours ago

Wed, Aug 13 - Mon, Aug 18

ORD

O'Hare Intl.

DEN

Denver Intl.

$202 Roundtrip, found 16 hours ago

$202

Roundtrip

found 16 hours ago

Select American Airlines flight, departing Wed, Aug 13 from O'Hare Intl. to Denver Intl., returning Mon, Aug 18, priced at $202 found 16 hours ago

Wed, Aug 20 - Mon, Aug 25

ORD

O'Hare Intl.

DEN

Denver Intl.

$205 Roundtrip, found 2 days ago

$205

Roundtrip

found 2 days ago

Select American Airlines flight, departing Wed, Aug 20 from O'Hare Intl. to Denver Intl., returning Mon, Aug 25, priced at $205 found 2 days ago

Sat, Oct 4 - Sat, Oct 4

ORD

O'Hare Intl.

DEN

Denver Intl.

$211 Roundtrip, found 5 days ago

$211

Roundtrip

found 5 days ago

Select Delta flight, departing Sat, Oct 4 from O'Hare Intl. to Denver Intl., returning Sat, Oct 4, priced at $211 found 5 days ago

Wed, Oct 1 - Tue, Oct 7

MDW

Midway Intl.

DEN

Denver Intl.

$217 Roundtrip, found 5 days ago

$217

Roundtrip

found 5 days ago

Select Delta flight, departing Wed, Oct 1 from Midway Intl. to Denver Intl., returning Tue, Oct 7, priced at $217 found 5 days ago