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.

Sat, Jan 10 - Sat, Jan 17

ORD

O'Hare Intl.

MCO

Orlando Intl.

$68 Roundtrip, found 1 day ago

$68

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Jan 10 from O'Hare Intl. to Orlando Intl., returning Sat, Jan 17, priced at $68 found 1 day ago

Sun, Feb 15 - Sat, Feb 21

ORD

O'Hare Intl.

PHX

Sky Harbor Intl.

$68 Roundtrip, found 6 days ago

$68

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sun, Feb 15 from O'Hare Intl. to Sky Harbor Intl., returning Sat, Feb 21, priced at $68 found 6 days ago

Fri, Jan 9 - Sun, Jan 11

MDW

Midway Intl.

MCO

Orlando Intl.

$68 Roundtrip, found 13 hours ago

$68

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Fri, Jan 9 from Midway Intl. to Orlando Intl., returning Sun, Jan 11, priced at $68 found 13 hours ago

Sun, Jan 25 - Fri, Jan 30

ORD

O'Hare Intl.

LAS

Harry Reid Intl.

$68 Roundtrip, found 21 hours ago

$68

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Sun, Jan 25 from O'Hare Intl. to Harry Reid Intl., returning Fri, Jan 30, priced at $68 found 21 hours ago

Sun, Jan 18 - Thu, Jan 22

ORD

O'Hare Intl.

DEN

Denver Intl.

$68 Roundtrip, found 4 days ago

$68

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sun, Jan 18 from O'Hare Intl. to Denver Intl., returning Thu, Jan 22, priced at $68 found 4 days ago

Sat, Jan 24 - Thu, Feb 5

ORD

O'Hare Intl.

FLL

Fort Lauderdale - Hollywood Intl.

$68 Roundtrip, found 19 hours ago

$68

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Sat, Jan 24 from O'Hare Intl. to Fort Lauderdale - Hollywood Intl., returning Thu, Feb 5, priced at $68 found 19 hours ago

Tue, Jan 27 - Tue, Feb 3

STL

Lambert-St. Louis Intl.

MCO

Orlando Intl.

$68 Roundtrip, found 4 days ago

$68

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Jan 27 from Lambert-St. Louis Intl. to Orlando Intl., returning Tue, Feb 3, priced at $68 found 4 days ago

Wed, Jan 7 - Thu, Jan 8

ORD

O'Hare Intl.

ATL

Hartsfield-Jackson Atlanta Intl.

$68 Roundtrip, found 2 days ago

$68

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Jan 7 from O'Hare Intl. to Hartsfield-Jackson Atlanta Intl., returning Thu, Jan 8, priced at $68 found 2 days ago

Sat, Jan 31 - Sat, Feb 7

ORD

O'Hare Intl.

MIA

Miami Intl.

$74 Roundtrip, found 1 day ago

$74

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sat, Jan 31 from O'Hare Intl. to Miami Intl., returning Sat, Feb 7, priced at $74 found 1 day ago

Wed, Dec 31 - Thu, Jan 15

MDW

Midway Intl.

MIA

Miami Intl.

$78 Roundtrip, found 5 days ago

$78

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Wed, Dec 31 from Midway Intl. to Miami Intl., returning Thu, Jan 15, priced at $78 found 5 days ago

Sun, Jan 18 - Thu, Jan 22

ORD

O'Hare Intl.

TPA

Tampa Intl.

$83 Roundtrip, found 5 days ago

$83

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Jan 18 from O'Hare Intl. to Tampa Intl., returning Thu, Jan 22, priced at $83 found 5 days ago

Mon, Dec 8 - Mon, Dec 15

MDW

Midway Intl.

PHX

Sky Harbor Intl.

$111 Roundtrip, found 2 days ago

$111

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Dec 8 from Midway Intl. to Sky Harbor Intl., returning Mon, Dec 15, priced at $111 found 2 days ago

Fri, Jan 9 - Mon, Jan 12

STL

Lambert-St. Louis Intl.

TPA

Tampa Intl.

$118 Roundtrip, found 3 days ago

$118

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jan 9 from Lambert-St. Louis Intl. to Tampa Intl., returning Mon, Jan 12, priced at $118 found 3 days ago

Tue, Dec 9 - Tue, Dec 16

ORD

O'Hare Intl.

DFW

Dallas-Fort Worth Intl.

$120 Roundtrip, found 3 days ago

$120

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Tue, Dec 9 from O'Hare Intl. to Dallas-Fort Worth Intl., returning Tue, Dec 16, priced at $120 found 3 days ago

Thu, Dec 4 - Sat, Dec 6

MDW

Midway Intl.

ATL

Hartsfield-Jackson Atlanta Intl.

$123 Roundtrip, found 1 day ago

$123

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Dec 4 from Midway Intl. to Hartsfield-Jackson Atlanta Intl., returning Sat, Dec 6, priced at $123 found 1 day ago

Tue, Dec 9 - Mon, Dec 15

ORD

O'Hare Intl.

LAX

Los Angeles Intl.

$127 Roundtrip, found 5 days ago

$127

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Tue, Dec 9 from O'Hare Intl. to Los Angeles Intl., returning Mon, Dec 15, priced at $127 found 5 days ago

Wed, Feb 11 - Wed, Feb 18

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$134 Roundtrip, found 2 days ago

$134

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Feb 11 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Wed, Feb 18, priced at $134 found 2 days ago

Thu, Dec 25 - Thu, Jan 1

MDW

Midway Intl.

DFW

Dallas-Fort Worth Intl.

$177 Roundtrip, found 3 days ago

$177

Roundtrip

found 3 days ago

Select Delta flight, departing Thu, Dec 25 from Midway Intl. to Dallas-Fort Worth Intl., returning Thu, Jan 1, priced at $177 found 3 days ago

Wed, Jan 21 - Sun, Jan 25

RFD

Greater Rockford

PHX

Sky Harbor Intl.

$199 Roundtrip, found 6 days ago

$199

Roundtrip

found 6 days ago

Select American Airlines flight, departing Wed, Jan 21 from Greater Rockford to Sky Harbor Intl., returning Sun, Jan 25, priced at $199 found 6 days ago

Tue, Dec 23 - Mon, Dec 29

PIA

Greater Peoria Regional

DEN

Denver Intl.

$246 Roundtrip, found 1 day ago

$246

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from Greater Peoria Regional to Denver Intl., returning Mon, Dec 29, priced at $246 found 1 day ago