Which airports can I use when flying from Islip to Philadelphia?

Flights from Islip to Philadelphia usually depart from Islip Long Island (ISP) and arrive at Philadelphia (PHL).

What cabin classes can I book on flights from Islip to Philadelphia?

Only Economy Class is available on flights from Islip to Philadelphia.

What popular places can I visit in Philadelphia?

Some of the most popular sights in Philadelphia are Philadelphia Convention Center, Rittenhouse Square and Philadelphia Stadium. These are among the most viewed places in Philadelphia on KAYAK.

Do I need a passport to fly from Islip to Philadelphia?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

What car rental options are available at Philadelphia Airport (PHL)?

Philadelphia Airport (PHL) hosts 5 major car rental companies, with daily rates starting from around $28 for economy cars. Top options include: • Payless • Dollar • Hertz • Thrifty • Budget

$172 CHEAP FLIGHTS from Islip to Philadelphia (ISP - PHL)

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Flight Deals

Cheap Flights from Islip to Philadelphia (ISP-PHL)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Islip to Philadelphia

Tue, Nov 3 - Sat, Nov 7

12:00 pm - 1:29 pmISP Islip Long Island-PHL Philadelphia

25h 29m1 stop Raleigh-Durham

7:25 pm - 10:17 amPHL Philadelphia-ISP Islip Long Island

14h 52m1 stop Raleigh-Durham

$244Multiple Airlines

Tue, Nov 3 - Sat, Nov 7

12:00 pm - 7:21 amISP Islip Long Island-PHL Philadelphia

19h 21m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson

7:25 pm - 10:17 amPHL Philadelphia-ISP Islip Long Island

14h 52m1 stop Raleigh-Durham

$259Multiple Airlines

Sat, Sep 26 - Wed, Sep 30

12:00 pm - 4:27 pmISP Islip Long Island-PHL Philadelphia

4h 27m1 stop Raleigh-Durham

9:30 am - 10:17 amPHL Philadelphia-ISP Islip Long Island

24h 47m1 stop Raleigh-Durham

$372Multiple Airlines

Sat, Oct 31 - Sat, Nov 7

6:33 pm - 2:53 pmISP Islip Long Island-PHL Philadelphia

20h 20m1 stop Orlando

5:15 am - 5:31 pmPHL Philadelphia-ISP Islip Long Island

12h 16m1 stop Orlando

$393Frontier

Sat, Sep 26 - Wed, Sep 30

12:00 pm - 4:27 pmISP Islip Long Island-PHL Philadelphia

4h 27m1 stop Raleigh-Durham

5:32 pm - 10:17 amPHL Philadelphia-ISP Islip Long Island

16h 45m2 stops Atlanta Hartsfield-Jackson Raleigh-Durham

$401Multiple Airlines

Tue, Sep 29 - Wed, Sep 30

5:43 pm - 12:09 amISP Islip Long Island-PHL Philadelphia

6h 26m1 stop Orlando

10:37 am - 4:58 pmPHL Philadelphia-ISP Islip Long Island

6h 21m1 stop Orlando

$444Frontier

Sat, Oct 31 - Fri, Nov 6

6:33 pm - 10:30 amISP Islip Long Island-PHL Philadelphia

15h 57m1 stop Orlando

5:45 pm - 5:31 pmPHL Philadelphia-ISP Islip Long Island

23h 46m1 stop Orlando

$473Frontier

Sat, Sep 26 - Wed, Sep 30

5:43 pm - 12:09 amISP Islip Long Island-PHL Philadelphia

6h 26m1 stop Orlando

10:37 am - 4:58 pmPHL Philadelphia-ISP Islip Long Island

6h 21m1 stop Orlando

$545Frontier

Recent last minute flight deals from Islip to Philadelphia

Tue, Sep 15 - Thu, Sep 17

12:00 pm - 1:35 pmISP Islip Long Island-PHL Philadelphia

25h 35m1 stop Raleigh-Durham

6:39 pm - 10:28 amPHL Philadelphia-ISP Islip Long Island

15h 49m1 stop Myrtle Beach Intl

$408Multiple Airlines

Tue, Sep 15 - Thu, Sep 17

5:43 pm - 1:35 pmISP Islip Long Island-PHL Philadelphia

19h 52m2 stops Orlando Raleigh-Durham

6:39 pm - 10:28 amPHL Philadelphia-ISP Islip Long Island

15h 49m1 stop Myrtle Beach Intl

$500Multiple Airlines

Wed, Sep 16 - Wed, Sep 23

5:43 pm - 12:09 amISP Islip Long Island-PHL Philadelphia

6h 26m1 stop Orlando

7:15 am - 4:58 pmPHL Philadelphia-ISP Islip Long Island

9h 43m1 stop Orlando

$579Frontier

Wed, Sep 16 - Fri, Sep 18

12:00 pm - 11:40 amISP Islip Long Island-PHL Philadelphia

23h 40m2 stops Raleigh-Durham Orlando

5:15 am - 4:58 pmPHL Philadelphia-ISP Islip Long Island

11h 43m1 stop Orlando

$581Multiple Airlines

Wed, Sep 16 - Fri, Sep 18

5:43 pm - 11:40 amISP Islip Long Island-PHL Philadelphia

17h 57m1 stop Orlando

5:45 pm - 4:58 pmPHL Philadelphia-ISP Islip Long Island

23h 13m1 stop Orlando

$604Frontier

Wed, Sep 16 - Fri, Sep 18

6:05 am - 2:05 pmISP Islip Long Island-PHL Philadelphia

8h 00m2 stops Baltimore/Washington Lambert-St Louis

2:05 pm - 10:10 pmPHL Philadelphia-ISP Islip Long Island

8h 05m2 stops Chicago Midway Baltimore/Washington

$807Southwest

Tue, Sep 15 - Thu, Sep 17

12:55 pm - 9:50 pmISP Islip Long Island-PHL Philadelphia

8h 55m2 stops Baltimore/Washington Nashville Intl

2:05 pm - 10:10 pmPHL Philadelphia-ISP Islip Long Island

8h 05m2 stops Chicago Midway Baltimore/Washington

$807Southwest

Sun, Sep 20 - Sun, Sep 27

5:43 pm - 12:09 amISP Islip Long Island-PHL Philadelphia

6h 26m1 stop Orlando

6:00 am - 6:03 pmPHL Philadelphia-ISP Islip Long Island

12h 03m1 stop Tampa

$838Frontier

Fri, Sep 18 - Sat, Sep 19

5:43 pm - 12:09 amISP Islip Long Island-PHL Philadelphia

6h 26m1 stop Orlando

10:10 am - 4:58 pmPHL Philadelphia-ISP Islip Long Island

6h 48m1 stop Orlando

$853Frontier

Booking Insights

Price, demand and travel trends for Islip to Philadelphia flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Islip to Philadelphia with more confidence.

What is the cheapest airline to fly from Islip to Philadelphia?

Frontier ($393) offered the cheapest round-trip ticket from Islip to Philadelphia in the last 5 days.

Find deals

Cheapest flight	$172

Flight from Islip to Philadelphia

When to book flights from Islip to Philadelphia

Are your dates flexible? Find out the best times to travel from Islip to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Islip to Philadelphia?
Flights from Islip to Philadelphia usually depart from Islip Long Island (ISP) and arrive at Philadelphia (PHL).
What cabin classes can I book on flights from Islip to Philadelphia?
Only Economy Class is available on flights from Islip to Philadelphia.
What popular places can I visit in Philadelphia?
Some of the most popular sights in Philadelphia are Philadelphia Convention Center, Rittenhouse Square and Philadelphia Stadium. These are among the most viewed places in Philadelphia on KAYAK.
Do I need a passport to fly from Islip to Philadelphia?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
What car rental options are available at Philadelphia Airport (PHL)?
Philadelphia Airport (PHL) hosts 5 major car rental companies, with daily rates starting from around $28 for economy cars. Top options include:
• Payless
• Dollar
• Hertz
• Thrifty
• Budget

If you're arriving late at night and need somewhere to stay, check out these hotels close to Philadelphia Airport.
- Embassy Suites by Hilton Philadelphia Airport
- DoubleTree by Hilton Philadelphia Airport
- Microtel Inn & Suites by Wyndham Philadelphia Airport

More options for your flight from Islip to Philadelphia

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ISP - PHL

$172 Find Cheap Flights from Islip to Philadelphia - Compare and Save

Everything you should know

Cheap Flights from Islip to Philadelphia (ISP-PHL)

Recent round-trip flight deals from Islip to Philadelphia

Recent one-way flight deals from Islip to Philadelphia

Recent last minute flight deals from Islip to Philadelphia

Price, demand and travel trends for Islip to Philadelphia flights

What is the cheapest airline to fly from Islip to Philadelphia?

Key details for Islip to Philadelphia flights

Cheapest flight

When to book flights from Islip to Philadelphia

Your Islip to Philadelphia flight questions, answered

Your guide to booking Islip to Philadelphia flights

More options for your flight from Islip to Philadelphia

Complete your trip to Philadelphia with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Islip to Philadelphia

Find direct flights to and from Islip and Philadelphia

Flights from domestic origins to Philadelphia

Flights to other popular destinations

Find deals for your return flight