Cheap Frontier Airlines flights Islip (ISP) to San Antonio (SAT)

Cheap Frontier Airlines flights Islip (ISP) to San Antonio (SAT)

Prices were available within the past 7 days and start at for one-way flights and $216 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Dec 13 - Wed, Dec 24

ISP

Islip

SAT

San Antonio

$216 Roundtrip, found 2 days ago

$216

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Dec 13 from Islip to San Antonio, returning Wed, Dec 24, priced at $216 found 2 days ago

Sat, Dec 13 - Mon, Dec 22

ISP

Islip

SAT

San Antonio

$276 Roundtrip, found 2 days ago

$276

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Dec 13 from Islip to San Antonio, returning Mon, Dec 22, priced at $276 found 2 days ago

Sat, Dec 13 - Fri, Dec 19

ISP

Islip

SAT

San Antonio

$380 Roundtrip, found 2 days ago

$380

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Dec 13 from Islip to San Antonio, returning Fri, Dec 19, priced at $380 found 2 days ago

Sun, Mar 8 - Thu, Mar 26

ISP

Islip

SAT

San Antonio

$631 Roundtrip, found 22 hours ago

$631

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Sun, Mar 8 from Islip to San Antonio, returning Thu, Mar 26, priced at $631 found 22 hours ago

Sun, Mar 8 - Sun, Mar 29

ISP

Islip

SAT

San Antonio

$695 Roundtrip, found 22 hours ago

$695

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Sun, Mar 8 from Islip to San Antonio, returning Sun, Mar 29, priced at $695 found 22 hours ago

Fri, Mar 6 - Thu, Mar 26

ISP

Islip

SAT

San Antonio

$710 Roundtrip, found 22 hours ago

$710

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Mar 6 from Islip to San Antonio, returning Thu, Mar 26, priced at $710 found 22 hours ago

Fri, Mar 6 - Sun, Mar 29

ISP

Islip

SAT

San Antonio

$774 Roundtrip, found 22 hours ago

$774

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Mar 6 from Islip to San Antonio, returning Sun, Mar 29, priced at $774 found 22 hours ago