Cheap Frontier Airlines flights Islip (ISP) to Chicago (ORD)

Cheap Frontier Airlines flights Islip (ISP) to Chicago (ORD)

Prices were available within the past 7 days and start at for one-way flights and $235 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jul 18 - Wed, Jul 23

ISP

Islip

ORD

Chicago

$235 Roundtrip, found 1 day ago

$235

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Jul 18 from Islip to Chicago, returning Wed, Jul 23, priced at $235 found 1 day ago

Thu, Jul 17 - Wed, Jul 23

ISP

Islip

ORD

Chicago

$247 Roundtrip, found 1 day ago

$247

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 17 from Islip to Chicago, returning Wed, Jul 23, priced at $247 found 1 day ago

Thu, Jul 17 - Tue, Jul 22

ISP

Islip

ORD

Chicago

$248 Roundtrip, found 1 day ago

$248

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 17 from Islip to Chicago, returning Tue, Jul 22, priced at $248 found 1 day ago

Thu, Jul 17 - Sun, Jul 20

ISP

Islip

ORD

Chicago

$302 Roundtrip, found 1 day ago

$302

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 17 from Islip to Chicago, returning Sun, Jul 20, priced at $302 found 1 day ago