Flights from Denver to Arlington Heights

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.

Thu, Oct 9 - Mon, Oct 13

DEN

Denver Intl.

ORD

O'Hare Intl.

$109 Roundtrip, found 6 days ago

$109

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Oct 9 from Denver Intl. to O'Hare Intl., returning Mon, Oct 13, priced at $109 found 6 days ago

Mon, Sep 15 - Mon, Sep 22

DEN

Denver Intl.

ORD

O'Hare Intl.

$114 Roundtrip, found 6 days ago

$114

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Sep 15 from Denver Intl. to O'Hare Intl., returning Mon, Sep 22, priced at $114 found 6 days ago

Fri, Sep 12 - Mon, Sep 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$116 Roundtrip, found 6 days ago

$116

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, Sep 12 from Denver Intl. to O'Hare Intl., returning Mon, Sep 15, priced at $116 found 6 days ago

Tue, Oct 14 - Tue, Oct 21

DEN

Denver Intl.

ORD

O'Hare Intl.

$120 Roundtrip, found 12 hours ago

$120

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Tue, Oct 14 from Denver Intl. to O'Hare Intl., returning Tue, Oct 21, priced at $120 found 12 hours ago

Mon, Sep 15 - Sun, Sep 21

DEN

Denver Intl.

ORD

O'Hare Intl.

$121 Roundtrip, found 6 days ago

$121

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Sep 15 from Denver Intl. to O'Hare Intl., returning Sun, Sep 21, priced at $121 found 6 days ago

Tue, Oct 14 - Thu, Oct 23

DEN

Denver Intl.

ORD

O'Hare Intl.

$128 Roundtrip, found 12 hours ago

$128

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Tue, Oct 14 from Denver Intl. to O'Hare Intl., returning Thu, Oct 23, priced at $128 found 12 hours ago

Tue, Sep 9 - Thu, Sep 18

DEN

Denver Intl.

ORD

O'Hare Intl.

$129 Roundtrip, found 1 day ago

$129

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Sep 9 from Denver Intl. to O'Hare Intl., returning Thu, Sep 18, priced at $129 found 1 day ago

Fri, Sep 12 - Mon, Sep 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$132 Roundtrip, found 6 days ago

$132

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, Sep 12 from Denver Intl. to O'Hare Intl., returning Mon, Sep 15, priced at $132 found 6 days ago

Tue, Sep 2 - Tue, Sep 9

DEN

Denver Intl.

ORD

O'Hare Intl.

$132 Roundtrip, found 15 hours ago

$132

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Tue, Sep 2 from Denver Intl. to O'Hare Intl., returning Tue, Sep 9, priced at $132 found 15 hours ago

Thu, Oct 16 - Thu, Oct 23

DEN

Denver Intl.

ORD

O'Hare Intl.

$136 Roundtrip, found 12 hours ago

$136

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Thu, Oct 16 from Denver Intl. to O'Hare Intl., returning Thu, Oct 23, priced at $136 found 12 hours ago

Mon, Sep 8 - Thu, Sep 18

DEN

Denver Intl.

ORD

O'Hare Intl.

$137 Roundtrip, found 1 day ago

$137

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Sep 8 from Denver Intl. to O'Hare Intl., returning Thu, Sep 18, priced at $137 found 1 day ago

Tue, Sep 2 - Thu, Sep 11

DEN

Denver Intl.

ORD

O'Hare Intl.

$140 Roundtrip, found 15 hours ago

$140

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Tue, Sep 2 from Denver Intl. to O'Hare Intl., returning Thu, Sep 11, priced at $140 found 15 hours ago

Thu, Sep 18 - Wed, Sep 24

DEN

Denver Intl.

ORD

O'Hare Intl.

$141 Roundtrip, found 1 day ago

$141

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Sep 18 from Denver Intl. to O'Hare Intl., returning Wed, Sep 24, priced at $141 found 1 day ago

Tue, Oct 14 - Fri, Oct 24

DEN

Denver Intl.

ORD

O'Hare Intl.

$144 Roundtrip, found 12 hours ago

$144

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Tue, Oct 14 from Denver Intl. to O'Hare Intl., returning Fri, Oct 24, priced at $144 found 12 hours ago

Tue, Oct 14 - Sun, Oct 26

DEN

Denver Intl.

ORD

O'Hare Intl.

$145 Roundtrip, found 12 hours ago

$145

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Tue, Oct 14 from Denver Intl. to O'Hare Intl., returning Sun, Oct 26, priced at $145 found 12 hours ago

Thu, Oct 16 - Fri, Oct 24

DEN

Denver Intl.

ORD

O'Hare Intl.

$152 Roundtrip, found 12 hours ago

$152

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Thu, Oct 16 from Denver Intl. to O'Hare Intl., returning Fri, Oct 24, priced at $152 found 12 hours ago

Fri, Sep 12 - Mon, Sep 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$152 Roundtrip, found 6 days ago

$152

Roundtrip

found 6 days ago

Select American Airlines flight, departing Fri, Sep 12 from Denver Intl. to O'Hare Intl., returning Mon, Sep 15, priced at $152 found 6 days ago

Fri, Sep 12 - Mon, Sep 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$152 Roundtrip, found 6 days ago

$152

Roundtrip

found 6 days ago

Select United flight, departing Fri, Sep 12 from Denver Intl. to O'Hare Intl., returning Mon, Sep 15, priced at $152 found 6 days ago

Thu, Oct 16 - Sun, Oct 26

DEN

Denver Intl.

ORD

O'Hare Intl.

$153 Roundtrip, found 12 hours ago

$153

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Thu, Oct 16 from Denver Intl. to O'Hare Intl., returning Sun, Oct 26, priced at $153 found 12 hours ago

Fri, Sep 12 - Mon, Sep 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$166 Roundtrip, found 6 days ago

$166

Roundtrip

found 6 days ago

Select Delta flight, departing Fri, Sep 12 from Denver Intl. to O'Hare Intl., returning Mon, Sep 15, priced at $166 found 6 days ago