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Cheap flights from Philadelphia to New York from $169

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 6/18. 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.
Frontier Logo
7:20 am - 8:57 pm
PHL
-
ISP
13h 37m
2 stops
Frontier Logo
9:52 pm - 8:51 am
ISP
-
PHL
10h 59m
1 stop
$331Frontier
Mon, Jun 15 - Sun, Jun 21
Multiple Airlines Logo
7:22 pm - 6:38 pm
PHL
-
ISP
23h 16m
1 stop
Multiple Airlines Logo
9:52 pm - 8:51 am
ISP
-
PHL
10h 59m
1 stop
$332Multiple Airlines
Mon, Jun 15 - Sun, Jun 21
Frontier Logo
7:22 pm - 8:57 pm
PHL
-
ISP
25h 35m
2 stops
Frontier Logo
9:52 pm - 8:51 am
ISP
-
PHL
10h 59m
1 stop
$337Frontier
Thu, Jun 11 - Wed, Jun 17
Multiple Airlines Logo
7:20 am - 8:57 pm
PHL
-
ISP
13h 37m
2 stops
Multiple Airlines Logo
11:57 am - 11:29 pm
ISP
-
PHL
11h 32m
1 stop
$349Multiple Airlines
Sat, Jun 13 - Sat, Jun 20
Multiple Airlines Logo
9:16 pm - 10:05 am
PHL
-
ISP
12h 49m
1 stop
Multiple Airlines Logo
11:57 am - 12:45 am
ISP
-
PHL
36h 48m
2 stops
$362Multiple Airlines
Sat, May 30 - Wed, Jun 3
Frontier Logo
9:16 pm - 8:57 pm
PHL
-
ISP
23h 41m
1 stop
Frontier Logo
9:52 pm - 8:51 am
ISP
-
PHL
10h 59m
1 stop
$370Frontier
Thu, Jun 11 - Wed, Jun 17
Multiple Airlines Logo
12:54 pm - 8:57 pm
PHL
-
ISP
8h 03m
1 stop
Multiple Airlines Logo
11:57 am - 11:29 pm
ISP
-
PHL
11h 32m
1 stop
$376Multiple Airlines
Sat, Jun 13 - Sat, Jun 20
Multiple Airlines Logo
9:20 am - 1:28 pm
PHL
-
ISP
4h 08m
1 stop
Multiple Airlines Logo
6:02 pm - 8:59 am
ISP
-
PHL
14h 57m
1 stop
$400Multiple Airlines
Mon, Jun 1 - Tue, Jun 2
Multiple Airlines Logo
9:16 pm - 10:05 am
PHL
-
ISP
12h 49m
1 stop
Multiple Airlines Logo
11:57 am - 9:16 pm
ISP
-
PHL
9h 19m
1 stop
$404Multiple Airlines
Sat, May 30 - Wed, Jun 3
Multiple Airlines Logo
7:20 am - 8:57 pm
PHL
-
ISP
13h 37m
2 stops
Multiple Airlines Logo
11:57 am - 9:15 pm
ISP
-
PHL
9h 18m
1 stop
$409Multiple Airlines
Wed, Jul 1 - Wed, Jul 15

JetBlue flights from Philadelphia to Islip, New York

Our best JetBlue deals on Philadelphia to Islip, New York flight tickets
JetBlue
Jun 11
PHL7:00 amPhiladelphia
15h 57m
1 stop
ISP10:57 pmIslip Long Island
Jun 17
ISP3:07 pmIslip Long Island
24h 27m
1 stop
PHL3:34 pmPhiladelphia
$593
JetBlue
Jun 11
PHL7:00 amPhiladelphia
7h 59m
1 stop
ISP2:59 pmIslip Long Island
Jun 14
ISP3:07 pmIslip Long Island
8h 44m
1 stop
PHL11:51 pmPhiladelphia
$603
JetBlue
Jun 14
PHL7:00 amPhiladelphia
7h 12m
1 stop
ISP2:12 pmIslip Long Island
Jun 21
ISP3:07 pmIslip Long Island
8h 44m
1 stop
PHL11:51 pmPhiladelphia
$673

Frontier flights from Philadelphia to Islip, New York

Our best Frontier deals on Philadelphia to Islip, New York flight tickets
Frontier
Jun 15
PHL7:20 amPhiladelphia
13h 37m
2 stops
ISP8:57 pmIslip Long Island
Jun 21
ISP9:52 pmIslip Long Island
10h 59m
1 stop
PHL8:51 amPhiladelphia
$331
Frontier
Jun 11
PHL7:22 pmPhiladelphia
25h 35m
2 stops
ISP8:57 pmIslip Long Island
Jun 17
ISP9:52 pmIslip Long Island
10h 59m
1 stop
PHL8:51 amPhiladelphia
$337
Frontier
Jun 11
PHL9:16 pmPhiladelphia
23h 41m
1 stop
ISP8:57 pmIslip Long Island
Jun 17
ISP9:52 pmIslip Long Island
10h 59m
1 stop
PHL8:51 amPhiladelphia
$370

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 May 18, 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

Mon 6/15

7:20 am-8:57 pm

2 stops13h 37m

Islip Long Island

Sun 6/21

9:52 pm-8:51 am

1 stop10h 59m

$331

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Mon 6/15

7:22 pm-6:38 pm

1 stop23h 16m

Islip Long Island

Sun 6/21

9:52 pm-8:51 am

1 stop10h 59m

$332

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Thu 6/11

7:22 pm-8:57 pm

2 stops25h 35m

Islip Long Island

Wed 6/17

9:52 pm-8:51 am

1 stop10h 59m

$337

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Sat 6/13

7:20 am-8:57 pm

2 stops13h 37m

Islip Long Island

Sat 6/20

11:57 am-11:29 pm

1 stop11h 32m

$349

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Sat 5/30

9:16 pm-10:05 am

1 stop12h 49m

Islip Long Island

Wed 6/3

11:57 am-12:45 am

2 stops36h 48m

$362

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Thu 6/11

9:16 pm-8:57 pm

1 stop23h 41m

Islip Long Island

Wed 6/17

9:52 pm-8:51 am

1 stop10h 59m

$370

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Sat 6/13

12:54 pm-8:57 pm

1 stop8h 03m

Islip Long Island

Sat 6/20

11:57 am-11:29 pm

1 stop11h 32m

$376
Quickest round-trip

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Mon 6/1

9:20 am-1:28 pm

1 stop4h 08m

Islip Long Island

Tue 6/2

6:02 pm-8:59 am

1 stop14h 57m

$400

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Sat 5/30

9:16 pm-10:05 am

1 stop12h 49m

Islip Long Island

Wed 6/3

11:57 am-9:16 pm

1 stop9h 19m

$404

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Wed 7/1

7:20 am-8:57 pm

2 stops13h 37m

Islip Long Island

Wed 7/15

11:57 am-9:15 pm

1 stop9h 18m

$409

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 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

Fastest flight time

7h 12m

Direct flights

None
The fastest flight from Philadelphia to Islip, New York takes 7h 12m
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. 7h 12m 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.

An easier way to manage your Islip, New York trip

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Wed 6/17
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