Flights from St. Louis to Peoria

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.

Thu, Sep 4 - Wed, Sep 10

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$185 Roundtrip, found 1 day ago

$185

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, Sep 4 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Wed, Sep 10, priced at $185 found 1 day ago

Thu, Sep 4 - Sun, Sep 14

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$200 Roundtrip, found 1 day ago

$200

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, Sep 4 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Sun, Sep 14, priced at $200 found 1 day ago

Sun, Aug 31 - Wed, Sep 10

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$210 Roundtrip, found 1 day ago

$210

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Aug 31 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Wed, Sep 10, priced at $210 found 1 day ago

Wed, Jul 9 - Thu, Jul 10

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$210 Roundtrip, found 4 hours ago

$210

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Wed, Jul 9 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Thu, Jul 10, priced at $210 found 4 hours ago

Thu, Sep 4 - Thu, Sep 11

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$211 Roundtrip, found 3 days ago

$211

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Thu, Sep 4 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Thu, Sep 11, priced at $211 found 3 days ago

Mon, Jul 7 - Thu, Jul 10

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$220 Roundtrip, found 4 hours ago

$220

Roundtrip

found 4 hours ago

Select Spirit Airlines flight, departing Mon, Jul 7 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Thu, Jul 10, priced at $220 found 4 hours ago

Sun, Aug 31 - Sun, Sep 14

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$225 Roundtrip, found 1 day ago

$225

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Aug 31 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Sun, Sep 14, priced at $225 found 1 day ago

Mon, Sep 1 - Sun, Sep 14

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$235 Roundtrip, found 1 day ago

$235

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Sun, Sep 14, priced at $235 found 1 day ago

Mon, Jul 7 - Wed, Jul 16

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$240 Roundtrip, found 4 hours ago

$240

Roundtrip

found 4 hours ago

Select Spirit Airlines flight, departing Mon, Jul 7 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Wed, Jul 16, priced at $240 found 4 hours ago

Mon, Jul 7 - Thu, Jul 10

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$245 Roundtrip, found 5 days ago

$245

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Mon, Jul 7 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Thu, Jul 10, priced at $245 found 5 days ago

Fri, Sep 5 - Sat, Sep 13

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$246 Roundtrip, found 8 hours ago

$246

Roundtrip

found 8 hours ago

Select Spirit Airlines flight, departing Fri, Sep 5 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Sat, Sep 13, priced at $246 found 8 hours ago

Thu, Sep 4 - Thu, Sep 11

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$257 Roundtrip, found 3 days ago

$257

Roundtrip

found 3 days ago

Select American Airlines flight, departing Thu, Sep 4 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Thu, Sep 11, priced at $257 found 3 days ago

Wed, Jul 9 - Wed, Jul 9

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$259 Roundtrip, found 5 days ago

$259

Roundtrip

found 5 days ago

Select Delta flight, departing Wed, Jul 9 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Wed, Jul 9, priced at $259 found 5 days ago

Fri, Jul 4 - Thu, Jul 10

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$265 Roundtrip, found 5 days ago

$265

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Fri, Jul 4 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Thu, Jul 10, priced at $265 found 5 days ago

Thu, Sep 4 - Thu, Sep 11

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$267 Roundtrip, found 3 days ago

$267

Roundtrip

found 3 days ago

Select Delta flight, departing Thu, Sep 4 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Thu, Sep 11, priced at $267 found 3 days ago

Thu, Sep 4 - Thu, Sep 11

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$270 Roundtrip, found 3 days ago

$270

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Sep 4 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Thu, Sep 11, priced at $270 found 3 days ago

Thu, Sep 4 - Thu, Sep 11

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$271 Roundtrip, found 3 days ago

$271

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Thu, Sep 4 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Thu, Sep 11, priced at $271 found 3 days ago

Tue, Sep 2 - Thu, Sep 11

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$273 Roundtrip, found 1 day ago

$273

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Sep 2 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Thu, Sep 11, priced at $273 found 1 day ago

Fri, Jul 4 - Wed, Jul 16

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$273 Roundtrip, found 4 hours ago

$273

Roundtrip

found 4 hours ago

Select Spirit Airlines flight, departing Fri, Jul 4 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Wed, Jul 16, priced at $273 found 4 hours ago

Thu, Sep 4 - Thu, Sep 11

STL

Lambert-St. Louis Intl.

PHX

Sky Harbor Intl.

$277 Roundtrip, found 3 days ago

$277

Roundtrip

found 3 days ago

Select United flight, departing Thu, Sep 4 from Lambert-St. Louis Intl. to Sky Harbor Intl., returning Thu, Sep 11, priced at $277 found 3 days ago