$140 Cheap Frontier Airlines flights St. Louis (STL) to San Diego (SAN)

$140 Cheap Frontier Airlines flights St. Louis (STL) to San Diego (SAN)

Prices were available within the past 7 days and start at $140 for one-way flights and $280 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 21 - Tue, Jul 28

STL

St. Louis

SAN

San Diego

$280 Roundtrip, found 5 days ago

$280

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Jul 21 from St. Louis to San Diego, returning Tue, Jul 28, priced at $280 found 5 days ago

Sat, Jul 18 - Tue, Jul 28

STL

St. Louis

SAN

San Diego

$294 Roundtrip, found 5 days ago

$294

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, Jul 18 from St. Louis to San Diego, returning Tue, Jul 28, priced at $294 found 5 days ago

Tue, Jul 21 - Sun, Aug 2

STL

St. Louis

SAN

San Diego

$300 Roundtrip, found 5 days ago

$300

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Jul 21 from St. Louis to San Diego, returning Sun, Aug 2, priced at $300 found 5 days ago

Sat, Jul 18 - Thu, Jul 30

STL

St. Louis

SAN

San Diego

$313 Roundtrip, found 5 days ago

$313

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, Jul 18 from St. Louis to San Diego, returning Thu, Jul 30, priced at $313 found 5 days ago

Sat, Jul 18 - Sun, Aug 2

STL

St. Louis

SAN

San Diego

$314 Roundtrip, found 5 days ago

$314

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, Jul 18 from St. Louis to San Diego, returning Sun, Aug 2, priced at $314 found 5 days ago

Wed, Jul 8 - Tue, Jul 14

STL

St. Louis

SAN

San Diego

$320 Roundtrip, found 16 hours ago

$320

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Wed, Jul 8 from St. Louis to San Diego, returning Tue, Jul 14, priced at $320 found 16 hours ago

Sat, Jul 11 - Tue, Jul 14

STL

St. Louis

SAN

San Diego

$334 Roundtrip, found 16 hours ago

$334

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Sat, Jul 11 from St. Louis to San Diego, returning Tue, Jul 14, priced at $334 found 16 hours ago

Mon, Jul 13 - Tue, Jul 14

STL

St. Louis

SAN

San Diego

$339 Roundtrip, found 16 hours ago

$339

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Mon, Jul 13 from St. Louis to San Diego, returning Tue, Jul 14, priced at $339 found 16 hours ago

Fri, Jul 10 - Tue, Jul 14

STL

St. Louis

SAN

San Diego

$340 Roundtrip, found 16 hours ago

$340

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Fri, Jul 10 from St. Louis to San Diego, returning Tue, Jul 14, priced at $340 found 16 hours ago

Sat, Jul 11 - Sat, Jul 18

STL

St. Louis

SAN

San Diego

$348 Roundtrip, found 16 hours ago

$348

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Sat, Jul 11 from St. Louis to San Diego, returning Sat, Jul 18, priced at $348 found 16 hours ago