Flights from St. Louis

Cheapest flights from St. Louis

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.

Wed, Mar 25 - Sat, Mar 28

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$98 Roundtrip, found 1 day ago

$98

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Mar 25 from Lambert-St. Louis Intl. to Denver Intl., returning Sat, Mar 28, priced at $98 found 1 day ago

Fri, May 8 - Mon, May 11

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$108 Roundtrip, found 4 days ago

$108

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, May 8 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Mon, May 11, priced at $108 found 4 days ago

Wed, Mar 25 - Mon, Mar 30

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$112 Roundtrip, found 1 day ago

$112

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Mar 25 from Lambert-St. Louis Intl. to Denver Intl., returning Mon, Mar 30, priced at $112 found 1 day ago

Wed, Mar 25 - Fri, Apr 3

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$118 Roundtrip, found 1 day ago

$118

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Mar 25 from Lambert-St. Louis Intl. to Denver Intl., returning Fri, Apr 3, priced at $118 found 1 day ago

Mon, Mar 30 - Mon, Apr 6

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$126 Roundtrip, found 1 day ago

$126

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Mar 30 from Lambert-St. Louis Intl. to Denver Intl., returning Mon, Apr 6, priced at $126 found 1 day ago

Mon, May 4 - Thu, May 21

STL

Lambert-St. Louis Intl.

MCO

Orlando Intl.

$150 Roundtrip, found 1 day ago

$150

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, May 4 from Lambert-St. Louis Intl. to Orlando Intl., returning Thu, May 21, priced at $150 found 1 day ago

Thu, Mar 19 - Sat, Apr 4

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$168 Roundtrip, found 5 days ago

$168

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Thu, Mar 19 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Sat, Apr 4, priced at $168 found 5 days ago

Mon, Mar 23 - Tue, Mar 31

STL

Lambert-St. Louis Intl.

TPA

Tampa Intl.

$169 Roundtrip, found 3 days ago

$169

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Mar 23 from Lambert-St. Louis Intl. to Tampa Intl., returning Tue, Mar 31, priced at $169 found 3 days ago

Sat, May 9 - Sat, May 16

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$177 Roundtrip, found 6 days ago

$177

Roundtrip

found 6 days ago

Select Delta flight, departing Sat, May 9 from Lambert-St. Louis Intl. to Denver Intl., returning Sat, May 16, priced at $177 found 6 days ago

Tue, May 12 - Sun, May 17

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$186 Roundtrip, found 6 days ago

$186

Roundtrip

found 6 days ago

Select United flight, departing Tue, May 12 from Lambert-St. Louis Intl. to Denver Intl., returning Sun, May 17, priced at $186 found 6 days ago

Tue, May 12 - Sun, May 17

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$186 Roundtrip, found 6 days ago

$186

Roundtrip

found 6 days ago

Select Southwest Airlines flight, departing Tue, May 12 from Lambert-St. Louis Intl. to Denver Intl., returning Sun, May 17, priced at $186 found 6 days ago

Thu, May 7 - Fri, May 15

STL

Lambert-St. Louis Intl.

MIA

Miami Intl.

$190 Roundtrip, found 1 day ago

$190

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, May 7 from Lambert-St. Louis Intl. to Miami Intl., returning Fri, May 15, priced at $190 found 1 day ago

Tue, Mar 24 - Tue, Mar 24

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$191 Roundtrip, found 14 hours ago

$191

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Tue, Mar 24 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Tue, Mar 24, priced at $191 found 14 hours ago

Mon, Jul 20 - Tue, Jul 28

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$237 Roundtrip, found 4 days ago

$237

Roundtrip

found 4 days ago

Select Delta flight, departing Mon, Jul 20 from Lambert-St. Louis Intl. to San Diego Intl., returning Tue, Jul 28, priced at $237 found 4 days ago

Tue, May 12 - Tue, May 19

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$295 Roundtrip, found 4 days ago

$295

Roundtrip

found 4 days ago

Select American Airlines flight, departing Tue, May 12 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Tue, May 19, priced at $295 found 4 days ago

Tue, Mar 24 - Tue, Apr 7

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$303 Roundtrip, found 6 days ago

$303

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Tue, Mar 24 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Tue, Apr 7, priced at $303 found 6 days ago

Tue, Apr 21 - Tue, May 5

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$303 Roundtrip, found 6 days ago

$303

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Tue, Apr 21 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Tue, May 5, priced at $303 found 6 days ago

Tue, Jul 7 - Sun, Jul 12

STL

Lambert-St. Louis Intl.

DAL

Love Field

$309 Roundtrip, found 2 days ago

$309

Roundtrip

found 2 days ago

Select Southwest Airlines flight, departing Tue, Jul 7 from Lambert-St. Louis Intl. to Love Field, returning Sun, Jul 12, priced at $309 found 2 days ago

Thu, May 21 - Tue, Jun 2

STL

Lambert-St. Louis Intl.

LAX

Los Angeles Intl.

$320 Roundtrip, found 3 days ago

$320

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, May 21 from Lambert-St. Louis Intl. to Los Angeles Intl., returning Tue, Jun 2, priced at $320 found 3 days ago

Sun, Jun 7 - Mon, Jun 15

STL

Lambert-St. Louis Intl.

CLD

McClellan-Palomar

$557 Roundtrip, found 5 days ago

$557

Roundtrip

found 5 days ago

Select American Airlines flight, departing Sun, Jun 7 from Lambert-St. Louis Intl. to McClellan-Palomar, returning Mon, Jun 15, priced at $557 found 5 days ago