Flights from Houston to Crystal Lake

Cheapest flights from Houston

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, Jul 27 - Thu, Aug 28

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$112 Roundtrip, found 1 day ago

$112

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Jul 27 from George Bush Intercontinental to O'Hare Intl., returning Thu, Aug 28, priced at $112 found 1 day ago

Wed, Jul 9 - Sat, Jul 19

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$124 Roundtrip, found 4 days ago

$124

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Wed, Jul 9 from George Bush Intercontinental to O'Hare Intl., returning Sat, Jul 19, priced at $124 found 4 days ago

Sun, Jul 27 - Sun, Aug 31

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$131 Roundtrip, found 1 day ago

$131

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Jul 27 from George Bush Intercontinental to O'Hare Intl., returning Sun, Aug 31, priced at $131 found 1 day ago

Fri, Jul 11 - Mon, Jul 14

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$140 Roundtrip, found 21 hours ago

$140

Roundtrip

found 21 hours ago

Select Spirit Airlines flight, departing Fri, Jul 11 from George Bush Intercontinental to O'Hare Intl., returning Mon, Jul 14, priced at $140 found 21 hours ago

Fri, Aug 29 - Sun, Aug 31

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$147 Roundtrip, found 2 days ago

$147

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Aug 29 from George Bush Intercontinental to O'Hare Intl., returning Sun, Aug 31, priced at $147 found 2 days ago

Sat, Jul 26 - Sun, Aug 31

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$150 Roundtrip, found 1 day ago

$150

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sat, Jul 26 from George Bush Intercontinental to O'Hare Intl., returning Sun, Aug 31, priced at $150 found 1 day ago

Fri, Aug 29 - Mon, Sep 1

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$154 Roundtrip, found 2 days ago

$154

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Aug 29 from George Bush Intercontinental to O'Hare Intl., returning Mon, Sep 1, priced at $154 found 2 days ago

Wed, Jul 30 - Thu, Aug 28

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$155 Roundtrip, found 1 day ago

$155

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Wed, Jul 30 from George Bush Intercontinental to O'Hare Intl., returning Thu, Aug 28, priced at $155 found 1 day ago

Tue, Jul 8 - Wed, Jul 23

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$158 Roundtrip, found 12 hours ago

$158

Roundtrip

found 12 hours ago

Select American Airlines flight, departing Tue, Jul 8 from George Bush Intercontinental to O'Hare Intl., returning Wed, Jul 23, priced at $158 found 12 hours ago

Tue, Jul 8 - Wed, Jul 23

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$159 Roundtrip, found 12 hours ago

$159

Roundtrip

found 12 hours ago

Select Spirit Airlines flight, departing Tue, Jul 8 from George Bush Intercontinental to O'Hare Intl., returning Wed, Jul 23, priced at $159 found 12 hours ago

Fri, Aug 29 - Sun, Aug 31

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$162 Roundtrip, found 2 days ago

$162

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Aug 29 from George Bush Intercontinental to O'Hare Intl., returning Sun, Aug 31, priced at $162 found 2 days ago

Fri, Aug 29 - Sun, Aug 31

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$164 Roundtrip, found 2 days ago

$164

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Aug 29 from George Bush Intercontinental to O'Hare Intl., returning Sun, Aug 31, priced at $164 found 2 days ago

Sat, Aug 30 - Mon, Sep 1

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$166 Roundtrip, found 2 days ago

$166

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sat, Aug 30 from George Bush Intercontinental to O'Hare Intl., returning Mon, Sep 1, priced at $166 found 2 days ago

Tue, Jul 1 - Tue, Jul 8

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$167 Roundtrip, found 6 days ago

$167

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Tue, Jul 1 from George Bush Intercontinental to O'Hare Intl., returning Tue, Jul 8, priced at $167 found 6 days ago

Tue, Jul 8 - Wed, Jul 23

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$169 Roundtrip, found 12 hours ago

$169

Roundtrip

found 12 hours ago

Select Spirit Airlines flight, departing Tue, Jul 8 from George Bush Intercontinental to O'Hare Intl., returning Wed, Jul 23, priced at $169 found 12 hours ago

Wed, Jul 23 - Sun, Jul 27

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$172 Roundtrip, found 2 days ago

$172

Roundtrip

found 2 days ago

Select American Airlines flight, departing Wed, Jul 23 from George Bush Intercontinental to O'Hare Intl., returning Sun, Jul 27, priced at $172 found 2 days ago

Sat, Aug 30 - Mon, Sep 1

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$177 Roundtrip, found 2 days ago

$177

Roundtrip

found 2 days ago

Select United flight, departing Sat, Aug 30 from George Bush Intercontinental to O'Hare Intl., returning Mon, Sep 1, priced at $177 found 2 days ago

Tue, Jul 8 - Wed, Jul 23

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$195 Roundtrip, found 12 hours ago

$195

Roundtrip

found 12 hours ago

Select American Airlines flight, departing Tue, Jul 8 from George Bush Intercontinental to O'Hare Intl., returning Wed, Jul 23, priced at $195 found 12 hours ago

Tue, Jul 8 - Wed, Jul 23

IAH

George Bush Intercontinental

ORD

O'Hare Intl.

$245 Roundtrip, found 12 hours ago

$245

Roundtrip

found 12 hours ago

Select Delta flight, departing Tue, Jul 8 from George Bush Intercontinental to O'Hare Intl., returning Wed, Jul 23, priced at $245 found 12 hours ago

Fri, Jul 11 - Mon, Jul 14

HOU

William P. Hobby

ORD

O'Hare Intl.

$405 Roundtrip, found 21 hours ago

$405

Roundtrip

found 21 hours ago

Select American Airlines flight, departing Fri, Jul 11 from William P. Hobby to O'Hare Intl., returning Mon, Jul 14, priced at $405 found 21 hours ago