When did momondo last update prices for flights from Philadelphia Airport to Islip Long Island Airport?

Prices for flights from Philadelphia Airport to Islip Long Island Airport refresh daily.

How old do you have to be to fly from Philadelphia Airport to Islip Long Island Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Islip Long Island Airport.

What documentation or ID do you need to fly to Islip Long Island Airport?

The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$129 Cheap Flights from Philadelphia to Islip, New York (PHL-ISP) in 2025

1 adult

0 bags

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Find the cheapest flights from Philadelphia to New York (PHL-ISP)

Round-trip

One-way

Cheap round-trip flights

5:01 am - 4:27 pmPHL-ISP

11h 26m1 stop

5:05 pm - 12:52 amISP-PHL

7h 47m1 stop

$161Frontier

Find Deal

Thu, Sep 11 - Fri, Sep 12

2:30 pm - 10:40 amPHL-ISP

20h 10m1 stop

9:49 am - 10:33 pmISP-PHL

12h 44m1 stop

$168Frontier

Find Deal

Tue, Sep 9 - Fri, Sep 12

8:43 pm - 10:40 amPHL-ISP

13h 57m1 stop

5:05 pm - 12:52 amISP-PHL

7h 47m1 stop

$189

Find Deal

Sat, Sep 20 - Fri, Sep 26

10:16 pm - 10:55 amPHL-ISP

12h 39m1 stop

11:25 am - 7:35 amISP-PHL

20h 10m1 stop

$216Frontier

Find Deal

Fri, Sep 12 - Sun, Sep 14

12:01 pm - 10:55 amPHL-ISP

22h 54m2 stops

5:05 pm - 1:02 pmISP-PHL

19h 57m1 stop

$221

Find Deal

Fri, Sep 12 - Mon, Sep 15

12:01 pm - 10:40 amPHL-ISP

22h 39m2 stops

5:05 pm - 12:52 amISP-PHL

7h 47m1 stop

$232Frontier

Find Deal

Sat, Sep 20 - Fri, Sep 26

12:01 pm - 10:40 amPHL-ISP

22h 39m2 stops

5:05 pm - 12:52 amISP-PHL

7h 47m1 stop

$233Frontier

Find Deal

Sat, Sep 20 - Fri, Sep 26

8:43 pm - 10:55 amPHL-ISP

14h 12m1 stop

11:25 am - 12:17 amISP-PHL

12h 52m2 stops

$269

Find Deal

Fri, Sep 12 - Sun, Sep 14

10:16 pm - 10:40 amPHL-ISP

12h 24m1 stop

11:35 am - 9:11 pmISP-PHL

9h 36m1 stop

$276Frontier

Find Deal

Mon, Sep 22 - Wed, Sep 24

6:40 pm - 10:40 amPHL-ISP

16h 00m1 stop

9:39 am - 11:57 amISP-PHL

26h 18m1 stop

$292Frontier

Find Deal

Mon, Sep 29 - Sun, Nov 2

Frontier flights from Philadelphia to Islip, New York

Our best Frontier deals on Philadelphia to Islip, New York flight tickets

Frontier

Sep 11

PHL5:01 amPhiladelphia

11h 26m

1 stop

ISP4:27 pmIslip Long Island

Sep 12

ISP5:05 pmIslip Long Island

7h 47m

1 stop

PHL12:52 amPhiladelphia

$161

Find similar

Frontier

Sep 9

PHL2:30 pmPhiladelphia

20h 10m

1 stop

ISP10:40 amIslip Long Island

Sep 12

ISP9:49 amIslip Long Island

12h 44m

1 stop

PHL10:33 pmPhiladelphia

$168

Find similar

Frontier

Sep 12

PHL10:16 pmPhiladelphia

12h 39m

1 stop

ISP10:55 amIslip Long Island

Sep 14

ISP11:25 amIslip Long Island

20h 10m

1 stop

PHL7:35 amPhiladelphia

$216

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Thu 9/11

5:01 am-4:27 pm

1 stop11h 26m

Islip Long Island

Fri 9/12

5:05 pm-12:52 am

1 stop7h 47m

$161

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Tue 9/9

2:30 pm-10:40 am

1 stop20h 10m

Islip Long Island

Fri 9/12

9:49 am-10:33 pm

1 stop12h 44m

$168

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Sat 9/20

8:43 pm-10:40 am

1 stop13h 57m

Islip Long Island

Fri 9/26

5:05 pm-12:52 am

1 stop7h 47m

$189

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Fri 9/12

10:16 pm-10:55 am

1 stop12h 39m

Islip Long Island

Sun 9/14

11:25 am-7:35 am

1 stop20h 10m

$216

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Fri 9/12

12:01 pm-10:55 am

2 stops22h 54m

Islip Long Island

Mon 9/15

5:05 pm-1:02 pm

1 stop19h 57m

$221

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Sat 9/20

12:01 pm-10:40 am

2 stops22h 39m

Islip Long Island

Fri 9/26

5:05 pm-12:52 am

1 stop7h 47m

$232

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Sat 9/20

12:01 pm-10:40 am

2 stops22h 39m

Islip Long Island

Fri 9/26

5:05 pm-12:52 am

1 stop7h 47m

$233

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Fri 9/12

8:43 pm-10:55 am

1 stop14h 12m

Islip Long Island

Sun 9/14

11:25 am-12:17 am

2 stops12h 52m

$269

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Mon 9/22

10:16 pm-10:40 am

1 stop12h 24m

Islip Long Island

Wed 9/24

11:35 am-9:11 pm

1 stop9h 36m

$276

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Mon 9/29

6:40 pm-10:40 am

1 stop16h 00m

Islip Long Island

Sun 11/2

9:39 am-11:57 am

1 stop26h 18m

$292

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Philadelphia to Islip Long Island?

Frontier is the most popular carrier operating from Philadelphia to Islip Long Island

When to book flights from Philadelphia to Islip, New York

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Islip, New York according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Philadelphia to Islip, New York (PHL to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Islip, New York

Best Price Found	$129
Fastest flight time	6h 13m
Direct flights	None
Airports in Islip, New York	1 airport

The best one-way flight to Islip, New York from Philadelphia in the past 72 hours is $129. The best round-trip flight deal from Philadelphia to Islip, New York found on momondo in the last 72 hours is $161.

The fastest flight from Philadelphia to Islip, New York takes 6h 13m

There are no direct flights from Philadelphia to Islip, New York. Popular non-direct route for this connection is Philadelphia Airport - Islip Long Island Airport.

There is 1 airport near Islip, New York: Islip Long Island (ISP)

Search flight deals

How far is Philadelphia to Islip Long Island by plane?
There are 115.4 mi between Philadelphia and Islip Long Island. 6h 13m is a normal flight duration for this route.
When did momondo last update prices for flights from Philadelphia Airport to Islip Long Island Airport?
Prices for flights from Philadelphia Airport to Islip Long Island Airport refresh daily.
How old do you have to be to fly from Philadelphia Airport to Islip Long Island Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Montauk

Riverhead

Sag Harbor

Southampton

Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Islip?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Philadelphia to Islip for you.

Can I find flights from Philadelphia to Islip with flexible booking policies on momondo?

Flights from Philadelphia to Islip with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Philadelphia to Islip?

Once you have performed a search for Philadelphia to Islip flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Philadelphia to Islip right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Philadelphia to Islip now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Islip and let you know when they change.