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

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

Prices were available within the past 7 days and start at for one-way flights and $143 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jan 28 - Thu, Jan 29

STL

St. Louis

SJU

San Juan

$143 Roundtrip, found 1 day ago

$143

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jan 28 from St. Louis to San Juan, returning Thu, Jan 29, priced at $143 found 1 day ago

Sun, Jan 25 - Wed, Feb 4

STL

St. Louis

SJU

San Juan

$148 Roundtrip, found 1 day ago

$148

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jan 25 from St. Louis to San Juan, returning Wed, Feb 4, priced at $148 found 1 day ago

Sat, Feb 14 - Thu, Mar 5

STL

St. Louis

SJU

San Juan

$155 Roundtrip, found 1 day ago

$155

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Feb 14 from St. Louis to San Juan, returning Thu, Mar 5, priced at $155 found 1 day ago

Tue, Jan 27 - Wed, Jan 28

STL

St. Louis

SJU

San Juan

$158 Roundtrip, found 1 day ago

$158

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jan 27 from St. Louis to San Juan, returning Wed, Jan 28, priced at $158 found 1 day ago

Tue, Jan 27 - Wed, Feb 4

STL

St. Louis

SJU

San Juan

$163 Roundtrip, found 1 day ago

$163

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jan 27 from St. Louis to San Juan, returning Wed, Feb 4, priced at $163 found 1 day ago

Tue, Jan 27 - Thu, Feb 5

STL

St. Louis

SJU

San Juan

$170 Roundtrip, found 1 day ago

$170

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jan 27 from St. Louis to San Juan, returning Thu, Feb 5, priced at $170 found 1 day ago

Sun, Jan 25 - Sat, Jan 31

STL

St. Louis

SJU

San Juan

$170 Roundtrip, found 1 day ago

$170

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jan 25 from St. Louis to San Juan, returning Sat, Jan 31, priced at $170 found 1 day ago

Tue, Jan 27 - Sat, Jan 31

STL

St. Louis

SJU

San Juan

$185 Roundtrip, found 1 day ago

$185

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jan 27 from St. Louis to San Juan, returning Sat, Jan 31, priced at $185 found 1 day ago

Tue, Jan 13 - Fri, Jan 23

STL

St. Louis

SJU

San Juan

$192 Roundtrip, found 1 day ago

$192

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jan 13 from St. Louis to San Juan, returning Fri, Jan 23, priced at $192 found 1 day ago

Sun, Jan 25 - Sat, Feb 7

STL

St. Louis

SJU

San Juan

$221 Roundtrip, found 1 day ago

$221

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jan 25 from St. Louis to San Juan, returning Sat, Feb 7, priced at $221 found 1 day ago

Sat, Feb 7 - Thu, Feb 12

STL

St. Louis

SJU

San Juan

$228 Roundtrip, found 1 day ago

$228

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Feb 7 from St. Louis to San Juan, returning Thu, Feb 12, priced at $228 found 1 day ago

Wed, Jan 28 - Sat, Feb 14

STL

St. Louis

SJU

San Juan

$230 Roundtrip, found 1 day ago

$230

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jan 28 from St. Louis to San Juan, returning Sat, Feb 14, priced at $230 found 1 day ago