Flights from St. Louis to San Antonio

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.

Sat, Nov 1 - Sat, Nov 8

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$210 Roundtrip, found 9 hours ago

$210

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Sat, Nov 1 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sat, Nov 8, priced at $210 found 9 hours ago

Sat, Nov 1 - Thu, Nov 6

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$214 Roundtrip, found 9 hours ago

$214

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Sat, Nov 1 from Lambert-St. Louis Intl. to San Antonio Intl., returning Thu, Nov 6, priced at $214 found 9 hours ago

Sun, Nov 2 - Thu, Nov 6

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$218 Roundtrip, found 9 hours ago

$218

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Sun, Nov 2 from Lambert-St. Louis Intl. to San Antonio Intl., returning Thu, Nov 6, priced at $218 found 9 hours ago

Tue, Nov 4 - Sat, Nov 8

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$220 Roundtrip, found 9 hours ago

$220

Roundtrip

found 9 hours ago

Select United flight, departing Tue, Nov 4 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sat, Nov 8, priced at $220 found 9 hours ago

Fri, Nov 7 - Sat, Nov 8

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$221 Roundtrip, found 9 hours ago

$221

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Fri, Nov 7 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sat, Nov 8, priced at $221 found 9 hours ago

Tue, Nov 4 - Sat, Nov 8

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$224 Roundtrip, found 9 hours ago

$224

Roundtrip

found 9 hours ago

Select United flight, departing Tue, Nov 4 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sat, Nov 8, priced at $224 found 9 hours ago

Fri, Nov 7 - Fri, Nov 7

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$225 Roundtrip, found 9 hours ago

$225

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Fri, Nov 7 from Lambert-St. Louis Intl. to San Antonio Intl., returning Fri, Nov 7, priced at $225 found 9 hours ago

Tue, Nov 4 - Sat, Nov 8

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$229 Roundtrip, found 9 hours ago

$229

Roundtrip

found 9 hours ago

Select Delta flight, departing Tue, Nov 4 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sat, Nov 8, priced at $229 found 9 hours ago

Tue, Nov 4 - Sat, Nov 8

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$229 Roundtrip, found 9 hours ago

$229

Roundtrip

found 9 hours ago

Select American Airlines flight, departing Tue, Nov 4 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sat, Nov 8, priced at $229 found 9 hours ago

Tue, Nov 4 - Sat, Nov 8

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$230 Roundtrip, found 9 hours ago

$230

Roundtrip

found 9 hours ago

Select United flight, departing Tue, Nov 4 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sat, Nov 8, priced at $230 found 9 hours ago

Tue, Nov 4 - Sat, Nov 8

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$234 Roundtrip, found 9 hours ago

$234

Roundtrip

found 9 hours ago

Select United flight, departing Tue, Nov 4 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sat, Nov 8, priced at $234 found 9 hours ago

Tue, Nov 4 - Sat, Nov 8

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$239 Roundtrip, found 9 hours ago

$239

Roundtrip

found 9 hours ago

Select American Airlines flight, departing Tue, Nov 4 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sat, Nov 8, priced at $239 found 9 hours ago

Mon, Nov 3 - Thu, Nov 6

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$249 Roundtrip, found 9 hours ago

$249

Roundtrip

found 9 hours ago

Select Delta flight, departing Mon, Nov 3 from Lambert-St. Louis Intl. to San Antonio Intl., returning Thu, Nov 6, priced at $249 found 9 hours ago

Wed, Nov 5 - Sun, Nov 9

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$255 Roundtrip, found 9 hours ago

$255

Roundtrip

found 9 hours ago

Select United flight, departing Wed, Nov 5 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sun, Nov 9, priced at $255 found 9 hours ago

Wed, Nov 5 - Sun, Nov 9

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$258 Roundtrip, found 9 hours ago

$258

Roundtrip

found 9 hours ago

Select United flight, departing Wed, Nov 5 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sun, Nov 9, priced at $258 found 9 hours ago

Wed, Nov 5 - Sun, Nov 9

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$259 Roundtrip, found 9 hours ago

$259

Roundtrip

found 9 hours ago

Select United flight, departing Wed, Nov 5 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sun, Nov 9, priced at $259 found 9 hours ago

Wed, Nov 5 - Sun, Nov 9

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$263 Roundtrip, found 9 hours ago

$263

Roundtrip

found 9 hours ago

Select United flight, departing Wed, Nov 5 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sun, Nov 9, priced at $263 found 9 hours ago

Wed, Nov 5 - Sun, Nov 9

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$263 Roundtrip, found 9 hours ago

$263

Roundtrip

found 9 hours ago

Select United flight, departing Wed, Nov 5 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sun, Nov 9, priced at $263 found 9 hours ago

Wed, Nov 5 - Sun, Nov 9

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$268 Roundtrip, found 9 hours ago

$268

Roundtrip

found 9 hours ago

Select United flight, departing Wed, Nov 5 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sun, Nov 9, priced at $268 found 9 hours ago

Tue, Nov 4 - Sat, Nov 8

STL

Lambert-St. Louis Intl.

SAT

San Antonio Intl.

$269 Roundtrip, found 9 hours ago

$269

Roundtrip

found 9 hours ago

Select United flight, departing Tue, Nov 4 from Lambert-St. Louis Intl. to San Antonio Intl., returning Sat, Nov 8, priced at $269 found 9 hours ago