Flights from Southern Illinois

Cheapest flights from Southern 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 12 - Fri, Jan 16

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$98 Roundtrip, found 6 days ago

$98

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Jan 12 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jan 16, priced at $98 found 6 days ago

Thu, Nov 13 - Sun, Nov 16

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$108 Roundtrip, found 5 days ago

$108

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Thu, Nov 13 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Sun, Nov 16, priced at $108 found 5 days ago

Fri, Nov 28 - Fri, Dec 5

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$109 Roundtrip, found 12 hours ago

$109

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Fri, Nov 28 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Fri, Dec 5, priced at $109 found 12 hours ago

Thu, Nov 13 - Mon, Nov 17

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$114 Roundtrip, found 5 days ago

$114

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Thu, Nov 13 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Mon, Nov 17, priced at $114 found 5 days ago

Thu, Jan 15 - Fri, Jan 16

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$116 Roundtrip, found 6 days ago

$116

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Jan 15 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jan 16, priced at $116 found 6 days ago

Mon, Jan 12 - Tue, Jan 20

STL

Lambert-St. Louis Intl.

MIA

Miami Intl.

$120 Roundtrip, found 5 days ago

$120

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Jan 12 from Lambert-St. Louis Intl. to Miami Intl., returning Tue, Jan 20, priced at $120 found 5 days ago

Fri, Nov 28 - Thu, Dec 4

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$124 Roundtrip, found 12 hours ago

$124

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Fri, Nov 28 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Thu, Dec 4, priced at $124 found 12 hours ago

Thu, Dec 4 - Fri, Dec 5

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$125 Roundtrip, found 12 hours ago

$125

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Thu, Dec 4 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Fri, Dec 5, priced at $125 found 12 hours ago

Tue, Nov 18 - Tue, Nov 25

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$144 Roundtrip, found 4 hours ago

$144

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Tue, Nov 18 from Lambert-St. Louis Intl. to San Diego Intl., returning Tue, Nov 25, priced at $144 found 4 hours ago

Thu, Nov 27 - Wed, Dec 17

STL

Lambert-St. Louis Intl.

LAX

Los Angeles Intl.

$216 Roundtrip, found 6 days ago

$216

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Nov 27 from Lambert-St. Louis Intl. to Los Angeles Intl., returning Wed, Dec 17, priced at $216 found 6 days ago

Tue, Jan 13 - Wed, Jan 21

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$217 Roundtrip, found 6 days ago

$217

Roundtrip

found 6 days ago

Select Delta flight, departing Tue, Jan 13 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Wed, Jan 21, priced at $217 found 6 days ago

Sat, Nov 15 - Wed, Nov 19

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$229 Roundtrip, found 5 days ago

$229

Roundtrip

found 5 days ago

Select American Airlines flight, departing Sat, Nov 15 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Wed, Nov 19, priced at $229 found 5 days ago

Sat, Nov 15 - Wed, Nov 19

STL

Lambert-St. Louis Intl.

DAL

Love Field

$249 Roundtrip, found 5 days ago

$249

Roundtrip

found 5 days ago

Select Delta flight, departing Sat, Nov 15 from Lambert-St. Louis Intl. to Love Field, returning Wed, Nov 19, priced at $249 found 5 days ago

Fri, Jan 9 - Mon, Jan 12

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$262 Roundtrip, found 11 hours ago

$262

Roundtrip

found 11 hours ago

Select United flight, departing Fri, Jan 9 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Mon, Jan 12, priced at $262 found 11 hours ago

Mon, Feb 9 - Wed, Feb 18

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$285 Roundtrip, found 5 days ago

$285

Roundtrip

found 5 days ago

Select Alaska Airlines flight, departing Mon, Feb 9 from Lambert-St. Louis Intl. to San Diego Intl., returning Wed, Feb 18, priced at $285 found 5 days ago

Sat, Mar 28 - Mon, Mar 30

STL

Lambert-St. Louis Intl.

TPA

Tampa Intl.

$295 Roundtrip, found 5 days ago

$295

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, Mar 28 from Lambert-St. Louis Intl. to Tampa Intl., returning Mon, Mar 30, priced at $295 found 5 days ago

Thu, Feb 12 - Sun, Feb 15

STL

Lambert-St. Louis Intl.

CLD

McClellan-Palomar

$310 Roundtrip, found 5 days ago

$310

Roundtrip

found 5 days ago

Select American Airlines flight, departing Thu, Feb 12 from Lambert-St. Louis Intl. to McClellan-Palomar, returning Sun, Feb 15, priced at $310 found 5 days ago

Mon, Feb 9 - Sat, Feb 14

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$317 Roundtrip, found 5 days ago

$317

Roundtrip

found 5 days ago

Select Hawaiian Airlines flight, departing Mon, Feb 9 from Lambert-St. Louis Intl. to San Diego Intl., returning Sat, Feb 14, priced at $317 found 5 days ago

Wed, Dec 17 - Wed, Dec 31

MWA

Williamson County Regional

TPA

Tampa Intl.

$370 Roundtrip, found 5 days ago

$370

Roundtrip

found 5 days ago

Select Contour Airlines flight, departing Wed, Dec 17 from Williamson County Regional to Tampa Intl., returning Wed, Dec 31, priced at $370 found 5 days ago

Sat, Nov 15 - Sun, Nov 16

EVV

Evansville Regional

RSW

Southwest Florida Intl.

$487 Roundtrip, found 3 days ago

$487

Roundtrip

found 3 days ago

Select Delta flight, departing Sat, Nov 15 from Evansville Regional to Southwest Florida Intl., returning Sun, Nov 16, priced at $487 found 3 days ago