Flights from Chicago to Lucerne

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.

Wed, Aug 27 - Sun, Aug 31

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 27 from O'Hare Intl. to Denver Intl., returning Sun, Aug 31, priced at $143 found 2 days ago

Wed, Aug 27 - Sun, Aug 31

ORD

O'Hare Intl.

DEN

Denver Intl.

$153 Roundtrip, found 2 days ago

$153

Roundtrip

found 2 days ago

Select United flight, departing Wed, Aug 27 from O'Hare Intl. to Denver Intl., returning Sun, Aug 31, priced at $153 found 2 days ago

Wed, Aug 27 - Sun, Aug 31

ORD

O'Hare Intl.

DEN

Denver Intl.

$157 Roundtrip, found 2 days ago

$157

Roundtrip

found 2 days ago

Select United flight, departing Wed, Aug 27 from O'Hare Intl. to Denver Intl., returning Sun, Aug 31, priced at $157 found 2 days ago

Wed, Aug 27 - Sun, Aug 31

ORD

O'Hare Intl.

DEN

Denver Intl.

$157 Roundtrip, found 2 days ago

$157

Roundtrip

found 2 days ago

Select American Airlines flight, departing Wed, Aug 27 from O'Hare Intl. to Denver Intl., returning Sun, Aug 31, priced at $157 found 2 days ago

Sun, Sep 21 - Wed, Sep 24

ORD

O'Hare Intl.

DEN

Denver Intl.

$158 Roundtrip, found 5 hours ago

$158

Roundtrip

found 5 hours ago

Select Frontier Airlines flight, departing Sun, Sep 21 from O'Hare Intl. to Denver Intl., returning Wed, Sep 24, priced at $158 found 5 hours ago

Sun, Sep 21 - Wed, Sep 24

ORD

O'Hare Intl.

DEN

Denver Intl.

$160 Roundtrip, found 5 hours ago

$160

Roundtrip

found 5 hours ago

Select United flight, departing Sun, Sep 21 from O'Hare Intl. to Denver Intl., returning Wed, Sep 24, priced at $160 found 5 hours ago

Wed, Aug 27 - Sun, Aug 31

ORD

O'Hare Intl.

DEN

Denver Intl.

$165 Roundtrip, found 2 days ago

$165

Roundtrip

found 2 days ago

Select American Airlines flight, departing Wed, Aug 27 from O'Hare Intl. to Denver Intl., returning Sun, Aug 31, priced at $165 found 2 days ago

Wed, Jun 25 - Mon, Jun 30

ORD

O'Hare Intl.

DEN

Denver Intl.

$165 Roundtrip, found 4 days ago

$165

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Wed, Jun 25 from O'Hare Intl. to Denver Intl., returning Mon, Jun 30, priced at $165 found 4 days ago

Mon, Aug 25 - Fri, Aug 29

MDW

Midway Intl.

DEN

Denver Intl.

$166 Roundtrip, found 2 days ago

$166

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Aug 25 from Midway Intl. to Denver Intl., returning Fri, Aug 29, priced at $166 found 2 days ago

Thu, Aug 28 - Sat, Aug 30

ORD

O'Hare Intl.

DEN

Denver Intl.

$166 Roundtrip, found 2 days ago

$166

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Aug 28 from O'Hare Intl. to Denver Intl., returning Sat, Aug 30, priced at $166 found 2 days ago

Wed, Aug 27 - Sun, Aug 31

ORD

O'Hare Intl.

DEN

Denver Intl.

$168 Roundtrip, found 2 days ago

$168

Roundtrip

found 2 days ago

Select United flight, departing Wed, Aug 27 from O'Hare Intl. to Denver Intl., returning Sun, Aug 31, priced at $168 found 2 days ago

Wed, Aug 27 - Sun, Aug 31

ORD

O'Hare Intl.

DEN

Denver Intl.

$169 Roundtrip, found 2 days ago

$169

Roundtrip

found 2 days ago

Select American Airlines flight, departing Wed, Aug 27 from O'Hare Intl. to Denver Intl., returning Sun, Aug 31, priced at $169 found 2 days ago

Sun, Sep 21 - Wed, Sep 24

ORD

O'Hare Intl.

DEN

Denver Intl.

$170 Roundtrip, found 5 hours ago

$170

Roundtrip

found 5 hours ago

Select American Airlines flight, departing Sun, Sep 21 from O'Hare Intl. to Denver Intl., returning Wed, Sep 24, priced at $170 found 5 hours ago

Sun, Aug 24 - Sat, Aug 30

ORD

O'Hare Intl.

DEN

Denver Intl.

$171 Roundtrip, found 2 days ago

$171

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Aug 24 from O'Hare Intl. to Denver Intl., returning Sat, Aug 30, priced at $171 found 2 days ago

Sun, Sep 21 - Wed, Sep 24

ORD

O'Hare Intl.

DEN

Denver Intl.

$172 Roundtrip, found 5 hours ago

$172

Roundtrip

found 5 hours ago

Select American Airlines flight, departing Sun, Sep 21 from O'Hare Intl. to Denver Intl., returning Wed, Sep 24, priced at $172 found 5 hours ago

Sun, Aug 24 - Sun, Aug 31

ORD

O'Hare Intl.

DEN

Denver Intl.

$173 Roundtrip, found 2 days ago

$173

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Aug 24 from O'Hare Intl. to Denver Intl., returning Sun, Aug 31, priced at $173 found 2 days ago

Wed, Jun 25 - Thu, Jun 26

ORD

O'Hare Intl.

DEN

Denver Intl.

$176 Roundtrip, found 4 days ago

$176

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Wed, Jun 25 from O'Hare Intl. to Denver Intl., returning Thu, Jun 26, priced at $176 found 4 days ago

Wed, Aug 27 - Sun, Aug 31

ORD

O'Hare Intl.

DEN

Denver Intl.

$217 Roundtrip, found 2 days ago

$217

Roundtrip

found 2 days ago

Select Delta flight, departing Wed, Aug 27 from O'Hare Intl. to Denver Intl., returning Sun, Aug 31, priced at $217 found 2 days ago

Sat, Jun 28 - Sun, Jun 29

ORD

O'Hare Intl.

DEN

Denver Intl.

$293 Roundtrip, found 4 days ago

$293

Roundtrip

found 4 days ago

Select Sun Country Airlines flight, departing Sat, Jun 28 from O'Hare Intl. to Denver Intl., returning Sun, Jun 29, priced at $293 found 4 days ago

Sat, Jun 28 - Sun, Jun 29

ORD

O'Hare Intl.

DEN

Denver Intl.

$335 Roundtrip, found 4 days ago

$335

Roundtrip

found 4 days ago

Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Sat, Jun 28 from O'Hare Intl. to Denver Intl., returning Sun, Jun 29, priced at $335 found 4 days ago