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, Sep 9 - Sat, Sep 12

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$108 Roundtrip, found 15 hours ago

$108

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Wed, Sep 9 from Lambert-St. Louis Intl. to Denver Intl., returning Sat, Sep 12, priced at $108 found 15 hours ago

Sun, Sep 6 - Sat, Sep 12

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$113 Roundtrip, found 15 hours ago

$113

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Sun, Sep 6 from Lambert-St. Louis Intl. to Denver Intl., returning Sat, Sep 12, priced at $113 found 15 hours ago

Tue, Aug 18 - Tue, Sep 1

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$118 Roundtrip, found 2 days ago

$118

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Aug 18 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Tue, Sep 1, priced at $118 found 2 days ago

Sun, Sep 6 - Fri, Sep 11

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$118 Roundtrip, found 15 hours ago

$118

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Sun, Sep 6 from Lambert-St. Louis Intl. to Denver Intl., returning Fri, Sep 11, priced at $118 found 15 hours ago

Tue, Aug 25 - Sun, Sep 6

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$123 Roundtrip, found 2 days ago

$123

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Aug 25 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Sun, Sep 6, priced at $123 found 2 days ago

Mon, Sep 21 - Thu, Sep 24

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$124 Roundtrip, found 6 days ago

$124

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Sep 21 from Lambert-St. Louis Intl. to Denver Intl., returning Thu, Sep 24, priced at $124 found 6 days ago

Thu, Oct 1 - Mon, Oct 12

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$130 Roundtrip, found 2 days ago

$130

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Oct 1 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Mon, Oct 12, priced at $130 found 2 days ago

Mon, Aug 31 - Thu, Sep 3

STL

Lambert-St. Louis Intl.

MCO

Orlando Intl.

$158 Roundtrip, found 19 hours ago

$158

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Mon, Aug 31 from Lambert-St. Louis Intl. to Orlando Intl., returning Thu, Sep 3, priced at $158 found 19 hours ago

Tue, Sep 1 - Sat, Sep 5

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$187 Roundtrip, found 2 days ago

$187

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Tue, Sep 1 from Lambert-St. Louis Intl. to San Diego Intl., returning Sat, Sep 5, priced at $187 found 2 days ago

Tue, Sep 8 - Mon, Sep 14

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$187 Roundtrip, found 15 hours ago

$187

Roundtrip

found 15 hours ago

Select Southwest Airlines flight, departing Tue, Sep 8 from Lambert-St. Louis Intl. to Denver Intl., returning Mon, Sep 14, priced at $187 found 15 hours ago

Tue, Sep 22 - Tue, Sep 29

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$187 Roundtrip, found 4 days ago

$187

Roundtrip

found 4 days ago

Select United flight, departing Tue, Sep 22 from Lambert-St. Louis Intl. to Denver Intl., returning Tue, Sep 29, priced at $187 found 4 days ago

Tue, Aug 18 - Tue, Sep 1

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$197 Roundtrip, found 2 days ago

$197

Roundtrip

found 2 days ago

Select American Airlines flight, departing Tue, Aug 18 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Tue, Sep 1, priced at $197 found 2 days ago

Tue, Aug 18 - Tue, Sep 1

STL

Lambert-St. Louis Intl.

DAL

Love Field

$197 Roundtrip, found 2 days ago

$197

Roundtrip

found 2 days ago

Select Southwest Airlines flight, departing Tue, Aug 18 from Lambert-St. Louis Intl. to Love Field, returning Tue, Sep 1, priced at $197 found 2 days ago

Sat, Sep 5 - Tue, Sep 15

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$207 Roundtrip, found 15 hours ago

$207

Roundtrip

found 15 hours ago

Select Delta flight, departing Sat, Sep 5 from Lambert-St. Louis Intl. to Denver Intl., returning Tue, Sep 15, priced at $207 found 15 hours ago

Tue, Sep 22 - Wed, Oct 7

STL

Lambert-St. Louis Intl.

TPA

Tampa Intl.

$225 Roundtrip, found 6 days ago

$225

Roundtrip

found 6 days ago

Select Southwest Airlines flight, departing Tue, Sep 22 from Lambert-St. Louis Intl. to Tampa Intl., returning Wed, Oct 7, priced at $225 found 6 days ago

Tue, Aug 18 - Mon, Aug 24

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$246 Roundtrip, found 3 days ago

$246

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Aug 18 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Mon, Aug 24, priced at $246 found 3 days ago

Tue, Sep 29 - Wed, Oct 21

STL

Lambert-St. Louis Intl.

MIA

Miami Intl.

$250 Roundtrip, found 6 days ago

$250

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Sep 29 from Lambert-St. Louis Intl. to Miami Intl., returning Wed, Oct 21, priced at $250 found 6 days ago

Wed, Sep 23 - Wed, Oct 7

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$254 Roundtrip, found 18 hours ago

$254

Roundtrip

found 18 hours ago

Select Frontier Airlines flight, departing Wed, Sep 23 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Wed, Oct 7, priced at $254 found 18 hours ago

Tue, Aug 25 - Wed, Sep 2

STL

Lambert-St. Louis Intl.

LAX

Los Angeles Intl.

$284 Roundtrip, found 4 days ago

$284

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Aug 25 from Lambert-St. Louis Intl. to Los Angeles Intl., returning Wed, Sep 2, priced at $284 found 4 days ago

Mon, Nov 23 - Thu, Nov 26

STL

Lambert-St. Louis Intl.

RSW

Southwest Florida Intl.

$327 Roundtrip, found 3 days ago

$327

Roundtrip

found 3 days ago

Select Delta flight, departing Mon, Nov 23 from Lambert-St. Louis Intl. to Southwest Florida Intl., returning Thu, Nov 26, priced at $327 found 3 days ago