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 4 days ago

$109

Roundtrip

found 4 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 4 days ago

Mon, Sep 15 - Mon, Sep 22

DEN

Denver Intl.

ORD

O'Hare Intl.

$114 Roundtrip, found 3 days ago

$114

Roundtrip

found 3 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 3 days ago

Fri, Sep 12 - Mon, Sep 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$116 Roundtrip, found 4 days ago

$116

Roundtrip

found 4 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 4 days ago

Tue, Sep 9 - Tue, Sep 16

DEN

Denver Intl.

ORD

O'Hare Intl.

$120 Roundtrip, found 4 hours ago

$120

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Tue, Sep 9 from Denver Intl. to O'Hare Intl., returning Tue, Sep 16, priced at $120 found 4 hours ago

Mon, Sep 15 - Sun, Sep 21

DEN

Denver Intl.

ORD

O'Hare Intl.

$121 Roundtrip, found 3 days ago

$121

Roundtrip

found 3 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 3 days ago

Thu, Sep 4 - Fri, Sep 12

DEN

Denver Intl.

ORD

O'Hare Intl.

$124 Roundtrip, found 5 days ago

$124

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Thu, Sep 4 from Denver Intl. to O'Hare Intl., returning Fri, Sep 12, priced at $124 found 5 days ago

Mon, Sep 8 - Tue, Sep 16

DEN

Denver Intl.

ORD

O'Hare Intl.

$128 Roundtrip, found 4 hours ago

$128

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Mon, Sep 8 from Denver Intl. to O'Hare Intl., returning Tue, Sep 16, priced at $128 found 4 hours ago

Tue, Sep 9 - Thu, Sep 18

DEN

Denver Intl.

ORD

O'Hare Intl.

$129 Roundtrip, found 4 hours ago

$129

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Tue, Sep 9 from Denver Intl. to O'Hare Intl., returning Thu, Sep 18, priced at $129 found 4 hours ago

Fri, Sep 12 - Mon, Sep 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$132 Roundtrip, found 4 days ago

$132

Roundtrip

found 4 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 4 days ago

Mon, Sep 8 - Mon, Sep 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$136 Roundtrip, found 4 hours ago

$136

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Mon, Sep 8 from Denver Intl. to O'Hare Intl., returning Mon, Sep 15, priced at $136 found 4 hours ago

Mon, Sep 8 - Thu, Sep 18

DEN

Denver Intl.

ORD

O'Hare Intl.

$137 Roundtrip, found 4 hours ago

$137

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Mon, Sep 8 from Denver Intl. to O'Hare Intl., returning Thu, Sep 18, priced at $137 found 4 hours ago

Thu, Oct 16 - Thu, Oct 23

DEN

Denver Intl.

ORD

O'Hare Intl.

$138 Roundtrip, found 18 hours ago

$138

Roundtrip

found 18 hours ago

Select Frontier Airlines flight, departing Thu, Oct 16 from Denver Intl. to O'Hare Intl., returning Thu, Oct 23, priced at $138 found 18 hours ago

Mon, Sep 15 - Thu, Sep 25

DEN

Denver Intl.

ORD

O'Hare Intl.

$141 Roundtrip, found 3 days ago

$141

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Sep 15 from Denver Intl. to O'Hare Intl., returning Thu, Sep 25, priced at $141 found 3 days ago

Fri, Sep 12 - Tue, Sep 16

DEN

Denver Intl.

ORD

O'Hare Intl.

$144 Roundtrip, found 4 hours ago

$144

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Fri, Sep 12 from Denver Intl. to O'Hare Intl., returning Tue, Sep 16, priced at $144 found 4 hours ago

Sun, Aug 31 - Mon, Sep 8

DEN

Denver Intl.

ORD

O'Hare Intl.

$145 Roundtrip, found 5 hours ago

$145

Roundtrip

found 5 hours ago

Select Frontier Airlines flight, departing Sun, Aug 31 from Denver Intl. to O'Hare Intl., returning Mon, Sep 8, priced at $145 found 5 hours ago

Mon, Sep 8 - Sun, Sep 14

DEN

Denver Intl.

ORD

O'Hare Intl.

$152 Roundtrip, found 4 hours ago

$152

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Mon, Sep 8 from Denver Intl. to O'Hare Intl., returning Sun, Sep 14, priced at $152 found 4 hours ago

Fri, Sep 12 - Mon, Sep 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$152 Roundtrip, found 4 days ago

$152

Roundtrip

found 4 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 4 days ago

Fri, Sep 12 - Mon, Sep 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$152 Roundtrip, found 4 days ago

$152

Roundtrip

found 4 days ago

Select United flight, departing Fri, Sep 12 from Denver Intl. to O'Hare Intl., returning Mon, Sep 15, priced at $152 found 4 days ago

Fri, Sep 12 - Thu, Sep 18

DEN

Denver Intl.

ORD

O'Hare Intl.

$153 Roundtrip, found 4 hours ago

$153

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Fri, Sep 12 from Denver Intl. to O'Hare Intl., returning Thu, Sep 18, priced at $153 found 4 hours ago

Fri, Sep 12 - Mon, Sep 15

DEN

Denver Intl.

ORD

O'Hare Intl.

$166 Roundtrip, found 4 days ago

$166

Roundtrip

found 4 days ago

Select Delta flight, departing Fri, Sep 12 from Denver Intl. to O'Hare Intl., returning Mon, Sep 15, priced at $166 found 4 days ago