Cheap Frontier Airlines flights Islip (ISP) to Phoenix (PHX)

Cheap Frontier Airlines flights Islip (ISP) to Phoenix (PHX)

Prices were available within the past 7 days and start at for one-way flights and $523 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Nov 9 - Wed, Nov 11

ISP

Islip

PHX

Phoenix

$523 Roundtrip, found 23 hours ago

$523

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Mon, Nov 9 from Islip to Phoenix, returning Wed, Nov 11, priced at $523 found 23 hours ago

Mon, Nov 9 - Fri, Nov 13

ISP

Islip

PHX

Phoenix

$560 Roundtrip, found 23 hours ago

$560

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Mon, Nov 9 from Islip to Phoenix, returning Fri, Nov 13, priced at $560 found 23 hours ago