$92 Cheap Frontier Airlines flights St. Louis (STL) to San Juan (SJU)

$92 Cheap Frontier Airlines flights St. Louis (STL) to San Juan (SJU)

Prices were available within the past 7 days and start at $92 for one-way flights and $221 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jan 17 - Thu, Jan 22

STL

St. Louis

SJU

San Juan

$221 Roundtrip, found 1 day ago

$221

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Jan 17 from St. Louis to San Juan, returning Thu, Jan 22, priced at $221 found 1 day ago

Sun, Jan 18 - Thu, Jan 22

STL

St. Louis

SJU

San Juan

$247 Roundtrip, found 1 day ago

$247

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jan 18 from St. Louis to San Juan, returning Thu, Jan 22, priced at $247 found 1 day ago

Tue, Jan 13 - Thu, Jan 22

STL

St. Louis

SJU

San Juan

$252 Roundtrip, found 1 day ago

$252

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jan 13 from St. Louis to San Juan, returning Thu, Jan 22, priced at $252 found 1 day ago

Fri, Jan 16 - Sat, Jan 17

STL

St. Louis

SJU

San Juan

$268 Roundtrip, found 1 day ago

$268

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Jan 16 from St. Louis to San Juan, returning Sat, Jan 17, priced at $268 found 1 day ago

Tue, Jan 13 - Sat, Jan 17

STL

St. Louis

SJU

San Juan

$273 Roundtrip, found 1 day ago

$273

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jan 13 from St. Louis to San Juan, returning Sat, Jan 17, priced at $273 found 1 day ago

Sat, Jan 17 - Wed, Jan 21

STL

St. Louis

SJU

San Juan

$292 Roundtrip, found 1 day ago

$292

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Jan 17 from St. Louis to San Juan, returning Wed, Jan 21, priced at $292 found 1 day ago