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Cheap flights from Philadelphia to New York from $203

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to New York departing on 8/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Philadelphia to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:20 am - 11:17 am
PHL
-
ISP
3h 57m
1 stop
Multiple Airlines Logo
10:48 am - 11:36 am
ISP
-
PHL
24h 48m
1 stop
$402Multiple Airlines
Wed, Aug 26 - Sun, Aug 30
Multiple Airlines Logo
7:20 am - 11:17 am
PHL
-
ISP
3h 57m
1 stop
Multiple Airlines Logo
7:49 pm - 8:51 am
ISP
-
PHL
37h 02m
2 stops
$428Multiple Airlines
Wed, Aug 26 - Sun, Aug 30
Multiple Airlines Logo
7:20 am - 4:47 pm
PHL
-
ISP
9h 27m
1 stop
Multiple Airlines Logo
2:28 pm - 11:11 am
ISP
-
PHL
20h 43m
1 stop
$485Multiple Airlines
Tue, Jun 23 - Fri, Jun 26
Multiple Airlines Logo
11:59 pm - 8:57 pm
PHL
-
ISP
20h 58m
2 stops
Multiple Airlines Logo
7:18 pm - 11:11 am
ISP
-
PHL
15h 53m
1 stop
$486Multiple Airlines
Fri, Jun 12 - Tue, Jun 16
Multiple Airlines Logo
4:24 pm - 8:57 pm
PHL
-
ISP
28h 33m
2 stops
Multiple Airlines Logo
2:28 pm - 11:11 am
ISP
-
PHL
20h 43m
1 stop
$494Multiple Airlines
Fri, Jun 12 - Fri, Jun 19
Frontier Logo
8:37 pm - 8:57 pm
PHL
-
ISP
24h 20m
2 stops
Frontier Logo
9:52 pm - 11:43 pm
ISP
-
PHL
25h 51m
1 stop
$524Frontier
Sun, Jun 14 - Thu, Jun 18
Multiple Airlines Logo
5:10 pm - 8:57 pm
PHL
-
ISP
27h 47m
1 stop
Multiple Airlines Logo
7:18 pm - 11:11 am
ISP
-
PHL
15h 53m
1 stop
$532Multiple Airlines
Fri, Jun 12 - Tue, Jun 16
Multiple Airlines Logo
7:20 am - 4:47 pm
PHL
-
ISP
9h 27m
1 stop
Multiple Airlines Logo
9:52 pm - 3:07 pm
ISP
-
PHL
17h 15m
2 stops
$535Multiple Airlines
Tue, Jun 23 - Fri, Jun 26
Multiple Airlines Logo
12:54 pm - 8:57 pm
PHL
-
ISP
8h 03m
1 stop
Multiple Airlines Logo
2:28 pm - 11:11 am
ISP
-
PHL
20h 43m
1 stop
$545Multiple Airlines
Fri, Jun 12 - Fri, Jun 19
Frontier Logo
5:26 am - 8:57 pm
PHL
-
ISP
15h 31m
1 stop
Frontier Logo
9:52 pm - 11:43 pm
ISP
-
PHL
25h 51m
1 stop
$552Frontier
Sun, Jun 14 - Thu, Jun 18

JetBlue flights from Philadelphia to Islip, New York

Our best JetBlue deals on Philadelphia to Islip, New York flight tickets
JetBlue
Jul 8
PHL7:00 amPhiladelphia
7h 12m
1 stop
ISP2:12 pmIslip Long Island
Jul 22
ISP6:00 amIslip Long Island
10h 07m
1 stop
PHL4:07 pmPhiladelphia
$593
JetBlue
Jun 24
PHL7:00 amPhiladelphia
7h 12m
1 stop
ISP2:12 pmIslip Long Island
Jul 1
ISP3:07 pmIslip Long Island
8h 44m
1 stop
PHL11:51 pmPhiladelphia
$603
JetBlue
Jun 15
PHL7:00 amPhiladelphia
7h 12m
1 stop
ISP2:12 pmIslip Long Island
Jun 19
ISP3:07 pmIslip Long Island
8h 44m
1 stop
PHL11:51 pmPhiladelphia
$633

Frontier flights from Philadelphia to Islip, New York

Our best Frontier deals on Philadelphia to Islip, New York flight tickets
Frontier
Jun 14
PHL8:37 pmPhiladelphia
24h 20m
2 stops
ISP8:57 pmIslip Long Island
Jun 18
ISP9:52 pmIslip Long Island
25h 51m
1 stop
PHL11:43 pmPhiladelphia
$524
Frontier
Jun 14
PHL5:26 amPhiladelphia
15h 31m
1 stop
ISP8:57 pmIslip Long Island
Jun 18
ISP9:52 pmIslip Long Island
25h 51m
1 stop
PHL11:43 pmPhiladelphia
$552

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Islip, New York that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 1, 2026.
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

Cheapest round-trip

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Wed 8/26

7:20 am-11:17 am

1 stop3h 57m

Islip Long Island

Sun 8/30

10:48 am-11:36 am

1 stop24h 48m

$402

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Wed 8/26

7:20 am-11:17 am

1 stop3h 57m

Islip Long Island

Sun 8/30

7:49 pm-8:51 am

2 stops37h 02m

$428

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Tue 6/23

7:20 am-4:47 pm

1 stop9h 27m

Islip Long Island

Fri 6/26

2:28 pm-11:11 am

1 stop20h 43m

$485

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Fri 6/12

11:59 pm-8:57 pm

2 stops20h 58m

Islip Long Island

Tue 6/16

7:18 pm-11:11 am

1 stop15h 53m

$486

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Fri 6/12

4:24 pm-8:57 pm

2 stops28h 33m

Islip Long Island

Fri 6/19

2:28 pm-11:11 am

1 stop20h 43m

$494

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Sun 6/14

8:37 pm-8:57 pm

2 stops24h 20m

Islip Long Island

Thu 6/18

9:52 pm-11:43 pm

1 stop25h 51m

$524

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Fri 6/12

5:10 pm-8:57 pm

1 stop27h 47m

Islip Long Island

Tue 6/16

7:18 pm-11:11 am

1 stop15h 53m

$532
Quickest round-trip

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Tue 6/23

7:20 am-4:47 pm

1 stop9h 27m

Islip Long Island

Fri 6/26

9:52 pm-3:07 pm

2 stops17h 15m

$535

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Fri 6/12

12:54 pm-8:57 pm

1 stop8h 03m

Islip Long Island

Fri 6/19

2:28 pm-11:11 am

1 stop20h 43m

$545

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Sun 6/14

5:26 am-8:57 pm

1 stop15h 31m

Islip Long Island

Thu 6/18

9:52 pm-11:43 pm

1 stop25h 51m

$552

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to New York from

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 and JetBlue are the most popular carriers 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

Fastest flight time

3h 57m

Direct flights

None
The fastest flight from Philadelphia to Islip, New York takes 3h 57m
There are no direct flights from Philadelphia to Islip, New York. There are no popular flight routes from Philadelphia to Islip, New York.
Search flight deals

Frequently asked questions about flying from Philadelphia to Islip, New York

  • How far is Philadelphia to Islip Long Island by plane?

    There are 115.4 mi between Philadelphia and Islip Long Island. 3h 57m 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.

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
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.

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