Cheap Frontier Airlines flights Islip (ISP) to Milwaukee (MKE)

Cheap Frontier Airlines flights Islip (ISP) to Milwaukee (MKE)

Prices were available within the past 7 days and start at for one-way flights and $755 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Nov 22 - Fri, Nov 27

ISP

Islip

MKE

Milwaukee

$755 Roundtrip, found 13 hours ago

$755

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Sun, Nov 22 from Islip to Milwaukee, returning Fri, Nov 27, priced at $755 found 13 hours ago

Sat, Nov 21 - Fri, Nov 27

ISP

Islip

MKE

Milwaukee

$786 Roundtrip, found 13 hours ago

$786

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Sat, Nov 21 from Islip to Milwaukee, returning Fri, Nov 27, priced at $786 found 13 hours ago

Tue, Nov 24 - Fri, Nov 27

ISP

Islip

MKE

Milwaukee

$1,024 Roundtrip, found 13 hours ago

$1,024

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Tue, Nov 24 from Islip to Milwaukee, returning Fri, Nov 27, priced at $1,024 found 13 hours ago

Fri, Nov 27 - Sun, Nov 29

ISP

Islip

MKE

Milwaukee

$1,028 Roundtrip, found 13 hours ago

$1,028

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Fri, Nov 27 from Islip to Milwaukee, returning Sun, Nov 29, priced at $1,028 found 13 hours ago

Tue, Nov 24 - Sat, Nov 28

ISP

Islip

MKE

Milwaukee

$1,063 Roundtrip, found 13 hours ago

$1,063

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Tue, Nov 24 from Islip to Milwaukee, returning Sat, Nov 28, priced at $1,063 found 13 hours ago

Tue, Nov 24 - Sun, Nov 29

ISP

Islip

MKE

Milwaukee

$1,093 Roundtrip, found 13 hours ago

$1,093

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Tue, Nov 24 from Islip to Milwaukee, returning Sun, Nov 29, priced at $1,093 found 13 hours ago