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Cheap flights from Philadelphia to New York from $127

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 5/29. 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
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 9:13 am
PHL
-
ISP
26h 13m
2 stops
Multiple Airlines Logo
4:07 pm - 9:49 am
ISP
-
PHL
17h 42m
2 stops
$395Multiple Airlines
Thu, Apr 23 - Fri, Apr 24
Multiple Airlines Logo
5:05 am - 6:46 pm
PHL
-
ISP
13h 41m
2 stops
Multiple Airlines Logo
2:31 pm - 7:20 pm
ISP
-
PHL
4h 49m
1 stop
$398Multiple Airlines
Thu, Apr 23 - Fri, Apr 24
Multiple Airlines Logo
10:38 pm - 9:13 am
PHL
-
ISP
10h 35m
1 stop
Multiple Airlines Logo
2:31 pm - 7:20 pm
ISP
-
PHL
4h 49m
1 stop
$452Multiple Airlines
Thu, Apr 23 - Fri, Apr 24
JetBlue Logo
7:00 am - 3:23 pm
PHL
-
ISP
8h 23m
2 stops
JetBlue Logo
11:35 am - 11:12 pm
ISP
-
PHL
11h 37m
1 stop
$535JetBlue
Thu, Sep 10 - Mon, Sep 14
JetBlue Logo
5:18 pm - 7:39 pm
PHL
-
ISP
26h 21m
1 stop
JetBlue Logo
9:04 pm - 4:23 pm
ISP
-
PHL
19h 19m
1 stop
$598JetBlue
Fri, May 8 - Thu, May 14
Multiple Airlines Logo
10:20 am - 4:10 pm
PHL
-
ISP
5h 50m
1 stop
Multiple Airlines Logo
11:35 am - 11:12 pm
ISP
-
PHL
11h 37m
1 stop
$704Multiple Airlines
Thu, Sep 10 - Mon, Sep 14

JetBlue flights from Philadelphia to Islip, New York

Our best JetBlue deals on Philadelphia to Islip, New York flight tickets
JetBlue
Sep 10
PHL7:00 amPhiladelphia
8h 23m
2 stops
ISP3:23 pmIslip Long Island
Sep 14
ISP11:35 amIslip Long Island
11h 37m
1 stop
PHL11:12 pmPhiladelphia
$535
JetBlue
May 8
PHL5:18 pmPhiladelphia
26h 21m
1 stop
ISP7:39 pmIslip Long Island
May 14
ISP9:04 pmIslip Long Island
19h 19m
1 stop
PHL4:23 pmPhiladelphia
$598
JetBlue
May 19
PHL7:00 amPhiladelphia
12h 39m
1 stop
ISP7:39 pmIslip Long Island
Jun 28
ISP3:07 pmIslip Long Island
8h 44m
1 stop
PHL11:51 pmPhiladelphia
$703

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 March 25, 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

Thu 4/23

7:00 am-9:13 am

2 stops26h 13m

Islip Long Island

Fri 4/24

4:07 pm-9:49 am

2 stops17h 42m

$395

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Thu 4/23

5:05 am-6:46 pm

2 stops13h 41m

Islip Long Island

Fri 4/24

2:31 pm-7:20 pm

1 stop4h 49m

$398
Quickest round-trip

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Thu 4/23

10:38 pm-9:13 am

1 stop10h 35m

Islip Long Island

Fri 4/24

2:31 pm-7:20 pm

1 stop4h 49m

$452

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Thu 9/10

7:00 am-3:23 pm

2 stops8h 23m

Islip Long Island

Mon 9/14

11:35 am-11:12 pm

1 stop11h 37m

$535

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Fri 5/8

5:18 pm-7:39 pm

1 stop26h 21m

Islip Long Island

Thu 5/14

9:04 pm-4:23 pm

1 stop19h 19m

$598

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Thu 9/10

10:20 am-4:10 pm

1 stop5h 50m

Islip Long Island

Mon 9/14

11:35 am-11:12 pm

1 stop11h 37m

$704
Cheapest one-way

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Fri 5/29

5:21 am-10:05 am

1 stop28h 44m

$127

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Wed 4/15

5:05 am-9:33 am

2 stops28h 28m

$130

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Wed 4/15

4:30 pm-1:31 pm

3 stops45h 01m

$161

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Fri 5/29

4:35 pm-10:05 am

2 stops17h 30m

$163

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 Southwest 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

7h 37m

Direct flights

None
The fastest flight from Philadelphia to Islip, New York takes 7h 37m
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

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

    There are 115.4 mi between Philadelphia and Islip Long Island. 7h 37m 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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Fri 4/24
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