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.

Tue, Jun 2 - Tue, Jun 16

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$66 Roundtrip, found 5 days ago

$66

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Jun 2 from Lambert-St. Louis Intl. to Denver Intl., returning Tue, Jun 16, priced at $66 found 5 days ago

Wed, Jun 3 - Sat, Jun 6

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$73 Roundtrip, found 3 days ago

$73

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Jun 3 from Lambert-St. Louis Intl. to Denver Intl., returning Sat, Jun 6, priced at $73 found 3 days ago

Wed, Jun 3 - Tue, Jun 9

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$78 Roundtrip, found 3 days ago

$78

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Jun 3 from Lambert-St. Louis Intl. to Denver Intl., returning Tue, Jun 9, priced at $78 found 3 days ago

Sat, May 30 - Sat, Jun 6

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$80 Roundtrip, found 3 days ago

$80

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, May 30 from Lambert-St. Louis Intl. to Denver Intl., returning Sat, Jun 6, priced at $80 found 3 days ago

Sat, May 2 - Sat, May 16

STL

Lambert-St. Louis Intl.

MCO

Orlando Intl.

$118 Roundtrip, found 1 day ago

$118

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, May 2 from Lambert-St. Louis Intl. to Orlando Intl., returning Sat, May 16, priced at $118 found 1 day ago

Sat, May 16 - Sun, May 17

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$118 Roundtrip, found 3 days ago

$118

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, May 16 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Sun, May 17, priced at $118 found 3 days ago

Sat, May 2 - Tue, May 12

STL

Lambert-St. Louis Intl.

TPA

Tampa Intl.

$150 Roundtrip, found 1 day ago

$150

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, May 2 from Lambert-St. Louis Intl. to Tampa Intl., returning Tue, May 12, priced at $150 found 1 day ago

Sat, May 2 - Sat, May 9

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$170 Roundtrip, found 1 day ago

$170

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, May 2 from Lambert-St. Louis Intl. to San Diego Intl., returning Sat, May 9, priced at $170 found 1 day ago

Sat, May 2 - Sun, May 17

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$170 Roundtrip, found 1 day ago

$170

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, May 2 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Sun, May 17, priced at $170 found 1 day ago

Sat, Apr 18 - Thu, Apr 23

STL

Lambert-St. Louis Intl.

MIA

Miami Intl.

$190 Roundtrip, found 6 days ago

$190

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sat, Apr 18 from Lambert-St. Louis Intl. to Miami Intl., returning Thu, Apr 23, priced at $190 found 6 days ago

Thu, Apr 30 - Fri, May 8

STL

Lambert-St. Louis Intl.

LAX

Los Angeles Intl.

$195 Roundtrip, found 4 days ago

$195

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Apr 30 from Lambert-St. Louis Intl. to Los Angeles Intl., returning Fri, May 8, priced at $195 found 4 days ago

Tue, Jun 2 - Sat, Jun 6

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$211 Roundtrip, found 3 days ago

$211

Roundtrip

found 3 days ago

Select Southwest Airlines flight, departing Tue, Jun 2 from Lambert-St. Louis Intl. to Denver Intl., returning Sat, Jun 6, priced at $211 found 3 days ago

Tue, Jun 2 - Sat, Jun 6

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$211 Roundtrip, found 3 days ago

$211

Roundtrip

found 3 days ago

Select United flight, departing Tue, Jun 2 from Lambert-St. Louis Intl. to Denver Intl., returning Sat, Jun 6, priced at $211 found 3 days ago

Mon, Apr 13 - Fri, Apr 24

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$215 Roundtrip, found 5 days ago

$215

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Apr 13 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Fri, Apr 24, priced at $215 found 5 days ago

Sat, May 23 - Tue, May 26

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$217 Roundtrip, found 1 day ago

$217

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sat, May 23 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Tue, May 26, priced at $217 found 1 day ago

Wed, May 13 - Wed, May 20

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$221 Roundtrip, found 5 days ago

$221

Roundtrip

found 5 days ago

Select Delta flight, departing Wed, May 13 from Lambert-St. Louis Intl. to Denver Intl., returning Wed, May 20, priced at $221 found 5 days ago

Tue, Apr 28 - Sat, May 2

STL

Lambert-St. Louis Intl.

DAL

Love Field

$259 Roundtrip, found 4 days ago

$259

Roundtrip

found 4 days ago

Select Delta flight, departing Tue, Apr 28 from Lambert-St. Louis Intl. to Love Field, returning Sat, May 2, priced at $259 found 4 days ago

Wed, Jul 22 - Tue, Jul 28

STL

Lambert-St. Louis Intl.

CLD

McClellan-Palomar

$333 Roundtrip, found 5 days ago

$333

Roundtrip

found 5 days ago

Select American Airlines flight, departing Wed, Jul 22 from Lambert-St. Louis Intl. to McClellan-Palomar, returning Tue, Jul 28, priced at $333 found 5 days ago

Tue, Apr 14 - Sun, May 24

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$362 Roundtrip, found 1 day ago

$362

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Tue, Apr 14 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, May 24, priced at $362 found 1 day ago

Sun, Oct 11 - Sun, Nov 1

STL

Lambert-St. Louis Intl.

RSW

Southwest Florida Intl.

$404 Roundtrip, found 6 days ago

$404

Roundtrip

found 6 days ago

Select Delta flight, departing Sun, Oct 11 from Lambert-St. Louis Intl. to Southwest Florida Intl., returning Sun, Nov 1, priced at $404 found 6 days ago