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.

Fri, Jul 4 - Thu, Jul 10

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$205 Roundtrip, found 2 days ago

$205

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Fri, Jul 4 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Thu, Jul 10, priced at $205 found 2 days ago

Fri, Jul 4 - Fri, Jul 11

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$215 Roundtrip, found 2 days ago

$215

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Fri, Jul 4 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jul 11, priced at $215 found 2 days ago

Mon, Jun 30 - Thu, Jul 10

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$219 Roundtrip, found 2 days ago

$219

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Mon, Jun 30 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Thu, Jul 10, priced at $219 found 2 days ago

Mon, Aug 11 - Wed, Aug 13

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$225 Roundtrip, found 4 days ago

$225

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Mon, Aug 11 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Wed, Aug 13, priced at $225 found 4 days ago

Mon, Jun 30 - Fri, Jul 11

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$229 Roundtrip, found 2 days ago

$229

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Mon, Jun 30 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jul 11, priced at $229 found 2 days ago

Mon, Jun 30 - Tue, Jul 8

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$232 Roundtrip, found 2 days ago

$232

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Mon, Jun 30 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Tue, Jul 8, priced at $232 found 2 days ago

Sun, Jul 6 - Thu, Jul 10

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$255 Roundtrip, found 2 days ago

$255

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sun, Jul 6 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Thu, Jul 10, priced at $255 found 2 days ago

Thu, Jul 3 - Wed, Jul 9

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$261 Roundtrip, found 3 days ago

$261

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Jul 3 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Wed, Jul 9, priced at $261 found 3 days ago

Sat, Aug 9 - Wed, Aug 13

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$264 Roundtrip, found 4 days ago

$264

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Sat, Aug 9 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Wed, Aug 13, priced at $264 found 4 days ago

Sun, Jul 6 - Fri, Jul 11

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$265 Roundtrip, found 2 days ago

$265

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sun, Jul 6 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jul 11, priced at $265 found 2 days ago

Sun, Aug 10 - Fri, Aug 15

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$267 Roundtrip, found 4 days ago

$267

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sun, Aug 10 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Aug 15, priced at $267 found 4 days ago

Sun, Jul 6 - Tue, Jul 8

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$269 Roundtrip, found 2 days ago

$269

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sun, Jul 6 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Tue, Jul 8, priced at $269 found 2 days ago

Fri, Aug 8 - Wed, Aug 13

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$275 Roundtrip, found 4 days ago

$275

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Fri, Aug 8 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Wed, Aug 13, priced at $275 found 4 days ago

Thu, Jul 3 - Fri, Jul 11

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$293 Roundtrip, found 2 days ago

$293

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Jul 3 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jul 11, priced at $293 found 2 days ago

Thu, Jul 3 - Fri, Jul 11

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$294 Roundtrip, found 2 days ago

$294

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Jul 3 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jul 11, priced at $294 found 2 days ago

Thu, Jul 3 - Fri, Jul 11

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$299 Roundtrip, found 2 days ago

$299

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Jul 3 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jul 11, priced at $299 found 2 days ago

Sat, Jul 5 - Tue, Jul 8

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$362 Roundtrip, found 2 days ago

$362

Roundtrip

found 2 days ago

Select Delta flight, departing Sat, Jul 5 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Tue, Jul 8, priced at $362 found 2 days ago

Thu, Jul 3 - Fri, Jul 11

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$449 Roundtrip, found 2 days ago

$449

Roundtrip

found 2 days ago

Select American Airlines flight, departing Thu, Jul 3 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jul 11, priced at $449 found 2 days ago

Thu, Jul 3 - Fri, Jul 11

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$505 Roundtrip, found 2 days ago

$505

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Thu, Jul 3 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jul 11, priced at $505 found 2 days ago

Thu, Jul 3 - Fri, Jul 11

STL

Lambert-St. Louis Intl.

LAS

Harry Reid Intl.

$527 Roundtrip, found 2 days ago

$527

Roundtrip

found 2 days ago

Select United flight, departing Thu, Jul 3 from Lambert-St. Louis Intl. to Harry Reid Intl., returning Fri, Jul 11, priced at $527 found 2 days ago