Flights from Alton

Cheapest flights from Alton

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.

Thu, Sep 18 - Thu, Sep 25

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$88 Roundtrip, found 6 days ago

$88

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Sep 18 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Thu, Sep 25, priced at $88 found 6 days ago

Mon, Sep 29 - Thu, Oct 2

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$108 Roundtrip, found 5 days ago

$108

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Sep 29 from Lambert-St. Louis Intl. to Denver Intl., returning Thu, Oct 2, priced at $108 found 5 days ago

Thu, Sep 18 - Sun, Sep 21

STL

Lambert-St. Louis Intl.

DFW

Dallas-Fort Worth Intl.

$113 Roundtrip, found 6 days ago

$113

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Sep 18 from Lambert-St. Louis Intl. to Dallas-Fort Worth Intl., returning Sun, Sep 21, priced at $113 found 6 days ago

Fri, Sep 26 - Sat, Oct 4

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$123 Roundtrip, found 6 days ago

$123

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, Sep 26 from Lambert-St. Louis Intl. to Denver Intl., returning Sat, Oct 4, priced at $123 found 6 days ago

Tue, Sep 30 - Sat, Oct 4

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$129 Roundtrip, found 1 day ago

$129

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Sep 30 from Lambert-St. Louis Intl. to Denver Intl., returning Sat, Oct 4, priced at $129 found 1 day ago

Mon, Sep 29 - Sat, Oct 4

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$133 Roundtrip, found 1 day ago

$133

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Sep 29 from Lambert-St. Louis Intl. to Denver Intl., returning Sat, Oct 4, priced at $133 found 1 day ago

Sun, Sep 7 - Wed, Sep 10

STL

Lambert-St. Louis Intl.

MIA

Miami Intl.

$141 Roundtrip, found 3 days ago

$141

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Sun, Sep 7 from Lambert-St. Louis Intl. to Miami Intl., returning Wed, Sep 10, priced at $141 found 3 days ago

Tue, Aug 12 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

MCO

Orlando Intl.

$144 Roundtrip, found 1 day ago

$144

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Aug 12 from Lambert-St. Louis Intl. to Orlando Intl., returning Thu, Aug 14, priced at $144 found 1 day ago

Mon, Sep 29 - Tue, Oct 7

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$157 Roundtrip, found 1 day ago

$157

Roundtrip

found 1 day ago

Select United flight, departing Mon, Sep 29 from Lambert-St. Louis Intl. to Denver Intl., returning Tue, Oct 7, priced at $157 found 1 day ago

Wed, Aug 13 - Sun, Aug 17

STL

Lambert-St. Louis Intl.

MCO

Orlando Intl.

$159 Roundtrip, found 1 day ago

$159

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Aug 13 from Lambert-St. Louis Intl. to Orlando Intl., returning Sun, Aug 17, priced at $159 found 1 day ago

Sat, Aug 16 - Fri, Aug 22

STL

Lambert-St. Louis Intl.

TPA

Tampa Intl.

$166 Roundtrip, found 1 hour ago

$166

Roundtrip

found 1 hour ago

Select American Airlines flight, departing Sat, Aug 16 from Lambert-St. Louis Intl. to Tampa Intl., returning Fri, Aug 22, priced at $166 found 1 hour ago

Sat, Sep 13 - Mon, Sep 15

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$183 Roundtrip, found 1 day ago

$183

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Sep 13 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Mon, Sep 15, priced at $183 found 1 day ago

Tue, Dec 2 - Wed, Dec 10

STL

Lambert-St. Louis Intl.

RSW

Southwest Florida Intl.

$187 Roundtrip, found 1 day ago

$187

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Dec 2 from Lambert-St. Louis Intl. to Southwest Florida Intl., returning Wed, Dec 10, priced at $187 found 1 day ago

Sat, Oct 4 - Sat, Oct 4

STL

Lambert-St. Louis Intl.

DEN

Denver Intl.

$191 Roundtrip, found 1 day ago

$191

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Oct 4 from Lambert-St. Louis Intl. to Denver Intl., returning Sat, Oct 4, priced at $191 found 1 day ago

Tue, Jul 29 - Tue, Aug 5

STL

Lambert-St. Louis Intl.

DAL

Love Field

$197 Roundtrip, found 1 day ago

$197

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Jul 29 from Lambert-St. Louis Intl. to Love Field, returning Tue, Aug 5, priced at $197 found 1 day ago

Tue, Sep 9 - Thu, Sep 18

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$203 Roundtrip, found 1 day ago

$203

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Tue, Sep 9 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Thu, Sep 18, priced at $203 found 1 day ago

Thu, Sep 25 - Wed, Oct 1

STL

Lambert-St. Louis Intl.

LAX

Los Angeles Intl.

$242 Roundtrip, found 5 days ago

$242

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Thu, Sep 25 from Lambert-St. Louis Intl. to Los Angeles Intl., returning Wed, Oct 1, priced at $242 found 5 days ago

Wed, Sep 3 - Mon, Sep 15

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$242 Roundtrip, found 6 days ago

$242

Roundtrip

found 6 days ago

Select United flight, departing Wed, Sep 3 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Mon, Sep 15, priced at $242 found 6 days ago

Thu, Sep 25 - Wed, Oct 1

STL

Lambert-St. Louis Intl.

LAX

Los Angeles Intl.

$329 Roundtrip, found 5 days ago

$329

Roundtrip

found 5 days ago

Select Alaska Airlines flight, departing Thu, Sep 25 from Lambert-St. Louis Intl. to Los Angeles Intl., returning Wed, Oct 1, priced at $329 found 5 days ago

Thu, Jul 10 - Wed, Jul 16

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$355 Roundtrip, found 3 days ago

$355

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Jul 10 from Lambert-St. Louis Intl. to San Diego Intl., returning Wed, Jul 16, priced at $355 found 3 days ago