Flights from Illinois

Cheapest flights from Illinois

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.

Mon, Jan 4 - Wed, Jan 13

ORD

O'Hare Intl.

FLL

Fort Lauderdale - Hollywood Intl.

$92 Roundtrip, found 5 days ago

$92

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Jan 4 from O'Hare Intl. to Fort Lauderdale - Hollywood Intl., returning Wed, Jan 13, priced at $92 found 5 days ago

Mon, Dec 7 - Wed, Dec 9

STL

Lambert-St. Louis Intl.

ATL

Hartsfield-Jackson Atlanta Intl.

$98 Roundtrip, found 9 hours ago

$98

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Mon, Dec 7 from Lambert-St. Louis Intl. to Hartsfield-Jackson Atlanta Intl., returning Wed, Dec 9, priced at $98 found 9 hours ago

Mon, Dec 7 - Thu, Dec 24

ORD

O'Hare Intl.

TPA

Tampa Intl.

$98 Roundtrip, found 23 hours ago

$98

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Mon, Dec 7 from O'Hare Intl. to Tampa Intl., returning Thu, Dec 24, priced at $98 found 23 hours ago

Wed, Nov 11 - Mon, Nov 16

MDW

Midway Intl.

ATL

Hartsfield-Jackson Atlanta Intl.

$104 Roundtrip, found 3 days ago

$104

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Nov 11 from Midway Intl. to Hartsfield-Jackson Atlanta Intl., returning Mon, Nov 16, priced at $104 found 3 days ago

Mon, Nov 9 - Thu, Nov 12

ORD

O'Hare Intl.

ATL

Hartsfield-Jackson Atlanta Intl.

$104 Roundtrip, found 3 days ago

$104

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Nov 9 from O'Hare Intl. to Hartsfield-Jackson Atlanta Intl., returning Thu, Nov 12, priced at $104 found 3 days ago

Tue, Nov 24 - Thu, Nov 26

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$108 Roundtrip, found 22 hours ago

$108

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Tue, Nov 24 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Thu, Nov 26, priced at $108 found 22 hours ago

Wed, Dec 2 - Sat, Dec 19

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$148 Roundtrip, found 21 hours ago

$148

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Wed, Dec 2 from O'Hare Intl. to Harry Reid Intl., returning Sat, Dec 19, priced at $148 found 21 hours ago

Thu, Nov 19 - Thu, Dec 3

MDW

Midway Intl.

DEN

Denver Intl.

$156 Roundtrip, found 4 days ago

$156

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Nov 19 from Midway Intl. to Denver Intl., returning Thu, Dec 3, priced at $156 found 4 days ago

Tue, Nov 17 - Thu, Nov 26

ORD

O'Hare Intl.

DEN

Denver Intl.

$158 Roundtrip, found 6 days ago

$158

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Nov 17 from O'Hare Intl. to Denver Intl., returning Thu, Nov 26, priced at $158 found 6 days ago

Thu, Dec 31 - Wed, Jan 6

ORD

O'Hare Intl.

MCO

Orlando Intl.

$165 Roundtrip, found 23 hours ago

$165

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Thu, Dec 31 from O'Hare Intl. to Orlando Intl., returning Wed, Jan 6, priced at $165 found 23 hours ago

Tue, Nov 3 - Wed, Nov 4

ORD

O'Hare Intl.

DFW

Dallas-Fort Worth Intl.

$168 Roundtrip, found 6 days ago

$168

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Nov 3 from O'Hare Intl. to Dallas-Fort Worth Intl., returning Wed, Nov 4, priced at $168 found 6 days ago

Tue, Jan 5 - Wed, Jan 13

MDW

Midway Intl.

MCO

Orlando Intl.

$169 Roundtrip, found 2 days ago

$169

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Jan 5 from Midway Intl. to Orlando Intl., returning Wed, Jan 13, priced at $169 found 2 days ago

Mon, Nov 23 - Thu, Dec 10

ORD

O'Hare Intl.

PHX

Sky Harbor Intl.

$172 Roundtrip, found 3 days ago

$172

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Nov 23 from O'Hare Intl. to Sky Harbor Intl., returning Thu, Dec 10, priced at $172 found 3 days ago

Tue, Nov 3 - Tue, Nov 17

MDW

Midway Intl.

FLL

Fort Lauderdale - Hollywood Intl.

$174 Roundtrip, found 6 days ago

$174

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Nov 3 from Midway Intl. to Fort Lauderdale - Hollywood Intl., returning Tue, Nov 17, priced at $174 found 6 days ago

Mon, Jan 4 - Fri, Jan 8

STL

Lambert-St. Louis Intl.

MCO

Orlando Intl.

$178 Roundtrip, found 6 days ago

$178

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Jan 4 from Lambert-St. Louis Intl. to Orlando Intl., returning Fri, Jan 8, priced at $178 found 6 days ago

Wed, Dec 16 - Thu, Dec 17

ORD

O'Hare Intl.

LAX

Los Angeles Intl.

$189 Roundtrip, found 5 days ago

$189

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Wed, Dec 16 from O'Hare Intl. to Los Angeles Intl., returning Thu, Dec 17, priced at $189 found 5 days ago

Tue, Jan 26 - Sat, Jan 30

MDW

Midway Intl.

LAS

Harry Reid Intl.

$192 Roundtrip, found 1 day ago

$192

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jan 26 from Midway Intl. to Harry Reid Intl., returning Sat, Jan 30, priced at $192 found 1 day ago

Wed, Jan 13 - Fri, Jan 22

STL

Lambert-St. Louis Intl.

TPA

Tampa Intl.

$194 Roundtrip, found 1 day ago

$194

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jan 13 from Lambert-St. Louis Intl. to Tampa Intl., returning Fri, Jan 22, priced at $194 found 1 day ago

Tue, Nov 17 - Wed, Nov 25

MDW

Midway Intl.

DFW

Dallas-Fort Worth Intl.

$209 Roundtrip, found 1 day ago

$209

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Nov 17 from Midway Intl. to Dallas-Fort Worth Intl., returning Wed, Nov 25, priced at $209 found 1 day ago

Wed, Nov 4 - Wed, Nov 18

EVV

Evansville Regional

MCO

Orlando Intl.

$290 Roundtrip, found 3 days ago

$290

Roundtrip

found 3 days ago

Select Breeze Airways flight, departing Wed, Nov 4 from Evansville Regional to Orlando Intl., returning Wed, Nov 18, priced at $290 found 3 days ago