December can be a great time to fly to Islip, New York from Philadelphia with a flight ticket averaging about $247. Cheapflights users have found deals in the month of December for as cheap as $130. The most expensive prices can be found in the month of October.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to Islip, New York as you normally would.
Fly from
Fly to
Budget
$356 - $510
Route
Depart
Return
Price
PhiladelphiaIslip Long Island
PHL - ISP
PHLISP
Philadelphia
Thu 7/11
2 stops21h 10m
Islip Long Island
Thu 7/18
2 stops19h 55m
PhiladelphiaIslip Long Island
PHL - ISP
PHLISP
Philadelphia
Thu 7/11
3 stops27h 41m
Islip Long Island
Thu 7/18
2 stops19h 55m
PhiladelphiaIslip Long Island
PHL - ISP
PHLISP
Philadelphia
Thu 7/11
3 stops27h 41m
Islip Long Island
Thu 7/18
3 stops27h 44m
PhiladelphiaIslip Long Island
PHL - ISP
PHLISP
Philadelphia
Fri 7/5
2 stops10h 50m
Islip Long Island
Fri 7/12
2 stops24h 52m
PhiladelphiaIslip Long Island
PHL - ISP
PHLISP
Philadelphia
Fri 7/5
2 stops10h 50m
Islip Long Island
Fri 7/12
3 stops24h 52m
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