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

Prices for flights from Islip Long Island Airport to Pennsylvania were last updated today.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to Pennsylvania.

What documentation or ID do you need to fly to Pennsylvania?

The travel and health documents required for your trip to Pennsylvania can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Pennsylvania. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$96 Cheap Flights from Islip to Pennsylvania in 2025/26

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Find the cheapest flights from Islip, New York to Pennsylvania

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 5:43 pm

ISP

PHL

9h 43m1 stop

8:43 pm - 6:48 pm

PHL

ISP

22h 05m1 stop

$137Multiple Airlines

Wed, Jan 14 - Wed, Jan 21

8:00 am - 10:03 pm

ISP

PHL

14h 03m1 stop

1:40 pm - 6:48 pm

PHL

ISP

29h 08m2 stops

$150Multiple Airlines

Wed, Jan 14 - Wed, Jan 21

8:00 am - 10:03 am

ISP

JFK

26h 03m1 stop

4:25 pm - 6:48 pm

JFK

ISP

26h 23m1 stop

$152Frontier

Wed, Jan 14 - Wed, Jan 21

12:55 pm - 12:51 am

ISP

PHL

11h 56m2 stops

6:00 am - 7:45 pm

PHL

ISP

13h 45m1 stop

$201Frontier

Tue, Jan 6 - Thu, Jan 8

11:50 am - 5:50 pm

ISP

PIT

6h 00m1 stop

10:00 am - 4:15 pm

PIT

ISP

6h 15m1 stop

$229Southwest

Thu, Feb 5 - Sun, Feb 8

5:55 am - 12:50 pm

ISP

PIT

6h 55m2 stops

6:10 am - 11:55 am

PIT

ISP

5h 45m1 stop

$234Southwest

Thu, Feb 5 - Sun, Feb 8

11:05 am - 5:29 pm

ISP

JFK

6h 24m1 stop

6:40 am - 2:28 pm

JFK

ISP

7h 48m1 stop

$328JetBlue

Wed, Jan 28 - Wed, Feb 25

12:25 pm - 9:41 pm

ISP

JFK

9h 16m1 stop

6:40 am - 2:28 pm

JFK

ISP

7h 48m1 stop

$338JetBlue

Fri, Jan 30 - Wed, Feb 25

10:38 am - 4:51 pm

ISP

PIT

6h 13m1 stop

7:55 pm - 11:10 am

PIT

ISP

39h 15m2 stops

$375Breeze Airways

Thu, Jan 1 - Mon, Jan 5

10:38 am - 4:51 pm

ISP

PIT

6h 13m1 stop

8:32 pm - 11:58 am

PIT

ISP

15h 26m1 stop

$415Breeze Airways

Thu, Jan 1 - Mon, Jan 5

Frontier flights from Islip, New York to Pennsylvania

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

Frontier

Jan 14

ISP8:00 amIslip Long Island

26h 03m

1 stop

JFK10:03 amNew York John F Kennedy Intl

Jan 21

JFK4:25 pmNew York John F Kennedy Intl

26h 23m

1 stop

ISP6:48 pmIslip Long Island

$152

Find similar

Frontier

Jan 6

ISP12:55 pmIslip Long Island

11h 56m

2 stops

PHL12:51 amPhiladelphia

Jan 8

PHL6:00 amPhiladelphia

13h 45m

1 stop

ISP7:45 pmIslip Long Island

$201

Find similar

Frontier

Jan 6

ISP12:00 pmIslip Long Island

8h 12m

1 stop

PHL8:12 pmPhiladelphia

Jan 8

PHL6:00 amPhiladelphia

13h 45m

1 stop

ISP7:45 pmIslip Long Island

$210

Find similar

JetBlue flights from Islip, New York to Pennsylvania

Our best JetBlue deals on Islip, New York to Pennsylvania flight tickets

JetBlue

Jan 28

ISP11:05 amIslip Long Island

6h 24m

1 stop

JFK5:29 pmNew York John F Kennedy Intl

Feb 25

JFK6:40 amNew York John F Kennedy Intl

7h 48m

1 stop

ISP2:28 pmIslip Long Island

$328

Find similar

JetBlue

Jan 30

ISP12:25 pmIslip Long Island

9h 16m

1 stop

JFK9:41 pmNew York John F Kennedy Intl

Feb 25

JFK6:40 amNew York John F Kennedy Intl

7h 48m

1 stop

ISP2:28 pmIslip Long Island

$338

Find similar

JetBlue

Jan 22

ISP12:25 pmIslip Long Island

8h 06m

1 stop

JFK8:31 pmNew York John F Kennedy Intl

Jan 25

JFK8:00 pmNew York John F Kennedy Intl

12h 52m

1 stop

ISP8:52 amIslip Long Island

$343

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Wed 1/14

8:00 am-5:43 pm

1 stop9h 43m

Philadelphia

Wed 1/21

8:43 pm-6:48 pm

1 stop22h 05m

$137

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Wed 1/14

8:00 am-10:03 pm

1 stop14h 03m

Philadelphia

Wed 1/21

1:40 pm-6:48 pm

2 stops29h 08m

$150

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Wed 1/14

8:00 am-10:03 am

1 stop26h 03m

New York John F Kennedy Intl

Wed 1/21

4:25 pm-6:48 pm

1 stop26h 23m

$152

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Tue 1/6

12:55 pm-12:51 am

2 stops11h 56m

Philadelphia

Thu 1/8

6:00 am-7:45 pm

1 stop13h 45m

$201

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 2/5

11:50 am-5:50 pm

1 stop6h 00m

Pittsburgh

Sun 2/8

10:00 am-4:15 pm

1 stop6h 15m

$229

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 2/5

5:55 am-12:50 pm

2 stops6h 55m

Pittsburgh

Sun 2/8

6:10 am-11:55 am

1 stop5h 45m

$234

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Wed 1/28

11:05 am-5:29 pm

1 stop6h 24m

New York John F Kennedy Intl

Wed 2/25

6:40 am-2:28 pm

1 stop7h 48m

$328

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Fri 1/30

12:25 pm-9:41 pm

1 stop9h 16m

New York John F Kennedy Intl

Wed 2/25

6:40 am-2:28 pm

1 stop7h 48m

$338

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 1/1

10:38 am-4:51 pm

1 stop6h 13m

Pittsburgh

Mon 1/5

7:55 pm-11:10 am

2 stops39h 15m

$375

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 1/1

10:38 am-4:51 pm

1 stop6h 13m

Pittsburgh

Mon 1/5

8:32 pm-11:58 am

1 stop15h 26m

$415

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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 Islip Long Island to Pennsylvania?

Frontier, Southwest, and JetBlue are the most popular carriers operating from Islip Long Island to Pennsylvania

What airlines fly to Pennsylvania?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Pennsylvania from Islip, New York according to our data. United Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Pennsylvania. Keep in mind that there are 5 different airlines that fly to Pennsylvania on a routine basis, so you have a few additional options to choose from.

Cheap Islip, New York to Pennsylvania flight deals and tips

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

Fastest flight time	4h 05m
Direct flights	None

The fastest flight from Islip, New York to Pennsylvania takes 4h 05m

There are no direct flights from Islip, New York to Pennsylvania. There are no popular flight routes from Islip, New York to Pennsylvania.

Search flight deals

When did momondo last update prices for flights from Islip Long Island Airport to Pennsylvania?
Prices for flights from Islip Long Island Airport to Pennsylvania were last updated today.
How old do you have to be to fly from Islip Long Island Airport to Pennsylvania?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to Pennsylvania.
What documentation or ID do you need to fly to Pennsylvania?
The travel and health documents required for your trip to Pennsylvania can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Pennsylvania. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find Islip to Pennsylvania flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Pennsylvania that suits you.

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

Flights from Islip to Pennsylvania 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 Islip to Pennsylvania?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Pennsylvania from Islip.

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

Yes momondo offers price alerts on flights to Pennsylvania from Islip. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.