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.

Tue, Sep 29 - Sun, Oct 11

ORD

O'Hare Intl.

MCO

Orlando Intl.

$88 Roundtrip, found 3 days ago

$88

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Sep 29 from O'Hare Intl. to Orlando Intl., returning Sun, Oct 11, priced at $88 found 3 days ago

Sun, Oct 4 - Sat, Oct 10

ORD

O'Hare Intl.

DEN

Denver Intl.

$98 Roundtrip, found 4 days ago

$98

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sun, Oct 4 from O'Hare Intl. to Denver Intl., returning Sat, Oct 10, priced at $98 found 4 days ago

Wed, Dec 2 - Sat, Dec 12

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$104 Roundtrip, found 20 hours ago

$104

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Wed, Dec 2 from O'Hare Intl. to Harry Reid Intl., returning Sat, Dec 12, priced at $104 found 20 hours ago

Sun, Sep 27 - Fri, Oct 9

MDW

Midway Intl.

ATL

Hartsfield-Jackson Atlanta Intl.

$118 Roundtrip, found 2 days ago

$118

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Sep 27 from Midway Intl. to Hartsfield-Jackson Atlanta Intl., returning Fri, Oct 9, priced at $118 found 2 days ago

Mon, Oct 19 - Wed, Oct 28

ORD

O'Hare Intl.

DFW

Dallas-Fort Worth Intl.

$128 Roundtrip, found 2 days ago

$128

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Oct 19 from O'Hare Intl. to Dallas-Fort Worth Intl., returning Wed, Oct 28, priced at $128 found 2 days ago

Sat, Sep 26 - Sat, Oct 3

SPI

Abraham Lincoln Capital

MCO

Orlando Intl.

$132 Roundtrip, found 4 days ago

$132

Roundtrip

found 4 days ago

Select Breeze Airways flight, departing Sat, Sep 26 from Abraham Lincoln Capital to Orlando Intl., returning Sat, Oct 3, priced at $132 found 4 days ago

Wed, Nov 18 - Wed, Dec 2

EVV

Evansville Regional

MCO

Orlando Intl.

$132 Roundtrip, found 2 days ago

$132

Roundtrip

found 2 days ago

Select Breeze Airways flight, departing Wed, Nov 18 from Evansville Regional to Orlando Intl., returning Wed, Dec 2, priced at $132 found 2 days ago

Mon, Nov 16 - Tue, Dec 1

STL

Lambert-St. Louis Intl.

MCO

Orlando Intl.

$133 Roundtrip, found 6 days ago

$133

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Nov 16 from Lambert-St. Louis Intl. to Orlando Intl., returning Tue, Dec 1, priced at $133 found 6 days ago

Wed, Oct 7 - Tue, Oct 20

ORD

O'Hare Intl.

FLL

Fort Lauderdale - Hollywood Intl.

$135 Roundtrip, found 4 days ago

$135

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Wed, Oct 7 from O'Hare Intl. to Fort Lauderdale - Hollywood Intl., returning Tue, Oct 20, priced at $135 found 4 days ago

Fri, Oct 9 - Wed, Oct 14

ORD

O'Hare Intl.

ATL

Hartsfield-Jackson Atlanta Intl.

$143 Roundtrip, found 4 days ago

$143

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, Oct 9 from O'Hare Intl. to Hartsfield-Jackson Atlanta Intl., returning Wed, Oct 14, priced at $143 found 4 days ago

Fri, Nov 6 - Mon, Nov 16

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$148 Roundtrip, found 5 days ago

$148

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Nov 6 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Mon, Nov 16, priced at $148 found 5 days ago

Fri, Oct 9 - Sat, Oct 10

ORD

O'Hare Intl.

LAX

Los Angeles Intl.

$155 Roundtrip, found 6 days ago

$155

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, Oct 9 from O'Hare Intl. to Los Angeles Intl., returning Sat, Oct 10, priced at $155 found 6 days ago

Sat, Sep 19 - Sat, Sep 26

STL

Lambert-St. Louis Intl.

ATL

Hartsfield-Jackson Atlanta Intl.

$157 Roundtrip, found 3 days ago

$157

Roundtrip

found 3 days ago

Select Delta flight, departing Sat, Sep 19 from Lambert-St. Louis Intl. to Hartsfield-Jackson Atlanta Intl., returning Sat, Sep 26, priced at $157 found 3 days ago

Tue, Nov 3 - Thu, Nov 12

MDW

Midway Intl.

DFW

Dallas-Fort Worth Intl.

$157 Roundtrip, found 1 day ago

$157

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Nov 3 from Midway Intl. to Dallas-Fort Worth Intl., returning Thu, Nov 12, priced at $157 found 1 day ago

Mon, Oct 12 - Wed, Oct 14

STL

Lambert-St. Louis Intl.

FLL

Fort Lauderdale - Hollywood Intl.

$163 Roundtrip, found 6 days ago

$163

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Oct 12 from Lambert-St. Louis Intl. to Fort Lauderdale - Hollywood Intl., returning Wed, Oct 14, priced at $163 found 6 days ago

Fri, Nov 6 - Mon, Nov 16

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$173 Roundtrip, found 19 hours ago

$173

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Fri, Nov 6 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Mon, Nov 16, priced at $173 found 19 hours ago

Fri, Dec 4 - Mon, Dec 7

MDW

Midway Intl.

MCO

Orlando Intl.

$188 Roundtrip, found 2 hours ago

$188

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Fri, Dec 4 from Midway Intl. to Orlando Intl., returning Mon, Dec 7, priced at $188 found 2 hours ago

Tue, Oct 13 - Sat, Oct 24

MDW

Midway Intl.

FLL

Fort Lauderdale - Hollywood Intl.

$188 Roundtrip, found 5 days ago

$188

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Oct 13 from Midway Intl. to Fort Lauderdale - Hollywood Intl., returning Sat, Oct 24, priced at $188 found 5 days ago

Fri, Oct 23 - Wed, Oct 28

ORD

O'Hare Intl.

PHX

Sky Harbor Intl.

$193 Roundtrip, just found

$193

Roundtrip

just found

Select Frontier Airlines flight, departing Fri, Oct 23 from O'Hare Intl. to Sky Harbor Intl., returning Wed, Oct 28, priced at $193 just found

Tue, Nov 24 - Fri, Nov 27

STL

Lambert-St. Louis Intl.

DAL

Love Field

$276 Roundtrip, found 5 days ago

$276

Roundtrip

found 5 days ago

Select Southwest Airlines flight, departing Tue, Nov 24 from Lambert-St. Louis Intl. to Love Field, returning Fri, Nov 27, priced at $276 found 5 days ago