Flights from St. Louis to Las Vegas

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.

Mon, May 12 - Thu, May 15

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$147 Roundtrip, found 1 day ago

$147

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, May 12 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Thu, May 15, priced at $147 found 1 day ago

Sun, May 11 - Thu, May 15

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$153 Roundtrip, found 1 day ago

$153

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, May 11 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Thu, May 15, priced at $153 found 1 day ago

Mon, May 12 - Wed, May 14

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$156 Roundtrip, found 1 day ago

$156

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, May 12 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Wed, May 14, priced at $156 found 1 day ago

Sun, May 11 - Sun, May 18

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$159 Roundtrip, found 1 day ago

$159

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, May 11 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Sun, May 18, priced at $159 found 1 day ago

Sun, May 11 - Wed, May 14

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$162 Roundtrip, found 1 day ago

$162

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, May 11 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Wed, May 14, priced at $162 found 1 day ago

Fri, May 16 - Sun, May 18

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$171 Roundtrip, found 1 day ago

$171

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, May 16 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Sun, May 18, priced at $171 found 1 day ago

Fri, May 16 - Tue, May 20

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$174 Roundtrip, found 1 day ago

$174

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, May 16 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Tue, May 20, priced at $174 found 1 day ago

Sun, May 4 - Wed, May 7

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$181 Roundtrip, found 1 day ago

$181

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, May 4 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Wed, May 7, priced at $181 found 1 day ago

Sat, May 10 - Sun, May 18

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$187 Roundtrip, found 1 day ago

$187

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, May 10 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Sun, May 18, priced at $187 found 1 day ago

Mon, Jun 23 - Thu, Jun 26

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$188 Roundtrip, found 4 days ago

$188

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Jun 23 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Thu, Jun 26, priced at $188 found 4 days ago

Tue, May 13 - Thu, May 15

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$190 Roundtrip, found 1 day ago

$190

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, May 13 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Thu, May 15, priced at $190 found 1 day ago

Mon, Jun 2 - Fri, Jun 6

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$191 Roundtrip, found 5 days ago

$191

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Jun 2 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jun 6, priced at $191 found 5 days ago

Tue, May 13 - Sun, May 18

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$196 Roundtrip, found 1 day ago

$196

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, May 13 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Sun, May 18, priced at $196 found 1 day ago

Tue, May 13 - Sat, May 17

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$197 Roundtrip, found 1 day ago

$197

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, May 13 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Sat, May 17, priced at $197 found 1 day ago

Sun, Oct 12 - Wed, Oct 15

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$282 Roundtrip, found 1 day ago

$282

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Oct 12 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Wed, Oct 15, priced at $282 found 1 day ago

Tue, Oct 14 - Wed, Oct 15

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$346 Roundtrip, found 1 day ago

$346

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Tue, Oct 14 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Wed, Oct 15, priced at $346 found 1 day ago

Wed, Oct 15 - Tue, Oct 21

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$347 Roundtrip, found 1 day ago

$347

Roundtrip

found 1 day ago

Select Delta flight, departing Wed, Oct 15 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Tue, Oct 21, priced at $347 found 1 day ago

Sat, Oct 11 - Wed, Oct 15

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$390 Roundtrip, found 1 day ago

$390

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Sat, Oct 11 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Wed, Oct 15, priced at $390 found 1 day ago

Sun, Jun 1 - Fri, Jun 6

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$415 Roundtrip, found 5 days ago

$415

Roundtrip

found 5 days ago

Select United flight, departing Sun, Jun 1 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jun 6, priced at $415 found 5 days ago

Tue, May 13 - Sat, May 17

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$471 Roundtrip, found 1 day ago

$471

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, May 13 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Sat, May 17, priced at $471 found 1 day ago