$151 Cheap Frontier Airlines flights San Juan (SJU) to St. Louis (STL)

$151 Cheap Frontier Airlines flights San Juan (SJU) to St. Louis (STL)

Prices were available within the past 7 days and start at $151 for one-way flights and $278 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 22 - Mon, Aug 25

SJU

San Juan

STL

St. Louis

$278 Roundtrip, found 1 day ago

$278

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 22 from San Juan to St. Louis, returning Mon, Aug 25, priced at $278 found 1 day ago

Thu, Aug 21 - Mon, Aug 25

SJU

San Juan

STL

St. Louis

$295 Roundtrip, found 1 day ago

$295

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Aug 21 from San Juan to St. Louis, returning Mon, Aug 25, priced at $295 found 1 day ago

Sun, Aug 17 - Fri, Aug 22

SJU

San Juan

STL

St. Louis

$306 Roundtrip, found 1 day ago

$306

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Aug 17 from San Juan to St. Louis, returning Fri, Aug 22, priced at $306 found 1 day ago

Thu, Aug 21 - Fri, Aug 22

SJU

San Juan

STL

St. Louis

$318 Roundtrip, found 1 day ago

$318

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Aug 21 from San Juan to St. Louis, returning Fri, Aug 22, priced at $318 found 1 day ago

Wed, Aug 20 - Fri, Aug 22

SJU

San Juan

STL

St. Louis

$337 Roundtrip, found 1 day ago

$337

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Aug 20 from San Juan to St. Louis, returning Fri, Aug 22, priced at $337 found 1 day ago

Sat, Aug 23 - Thu, Aug 28

SJU

San Juan

STL

St. Louis

$348 Roundtrip, found 1 day ago

$348

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Aug 23 from San Juan to St. Louis, returning Thu, Aug 28, priced at $348 found 1 day ago

Wed, Aug 20 - Thu, Aug 28

SJU

San Juan

STL

St. Louis

$368 Roundtrip, found 1 day ago

$368

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Aug 20 from San Juan to St. Louis, returning Thu, Aug 28, priced at $368 found 1 day ago