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 many operators does momondo search for flights from Islip Long Island Airport to Pennsylvania?

As of September 2025, there is 1 operator available to choose from for flights from Islip Long Island Airport to Pennsylvania.

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.

$112 Cheap Flights from Islip to Pennsylvania in 2025/26

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Find the cheapest flights from Islip to Pennsylvania

Round-trip

One-way

Last minute

Cheap round-trip flights

5:35 pm - 11:35 pmISP-PIT

6h 00m1 stop

6:00 pm - 11:45 pmPIT-ISP

5h 45m1 stop

$185Southwest

Find Deal

Thu, Oct 16 - Thu, Oct 23

9:54 am - 5:55 pmISP-PHL

8h 01m1 stop

10:32 pm - 10:37 amPHL-ISP

12h 05m1 stop

$203Frontier

Find Deal

Fri, Oct 31 - Sun, Nov 2

3:20 pm - 11:05 pmISP-PIT

7h 45m1 stop

1:10 pm - 4:05 pmPIT-ISP

2h 55m1 stop

$229Southwest

Find Deal

Mon, Oct 6 - Wed, Oct 8

5:35 pm - 11:35 pmISP-PIT

6h 00m1 stop

6:10 am - 12:25 pmPIT-ISP

6h 15m2 stops

$234Southwest

Find Deal

Mon, Oct 6 - Wed, Oct 8

5:05 pm - 12:52 amISP-PHL

7h 47m1 stop

11:34 am - 8:42 pmPHL-ISP

9h 08m1 stop

$237Frontier

Find Deal

Fri, Oct 3 - Tue, Oct 7

1:57 pm - 10:29 pmISP-DCA

8h 32m1 stop

6:45 am - 1:02 pmDCA-ISP

6h 17m1 stop

$242JetBlue

Find Deal

Thu, Oct 30 - Tue, Nov 4

5:05 pm - 12:52 amISP-PHL

7h 47m1 stop

11:34 am - 8:42 pmPHL-ISP

9h 08m1 stop

$260Frontier

Find Deal

Mon, Oct 6 - Tue, Oct 7

4:58 pm - 9:00 amISP-DCA

16h 02m1 stop

7:37 am - 10:50 amDCA-ISP

27h 13m1 stop

$302JetBlue

Find Deal

Fri, Oct 3 - Sun, Oct 5

8:47 pm - 7:46 amISP-PIT

10h 59m1 stop

1:31 pm - 6:56 pmPIT-ISP

5h 25m1 stop

$309Breeze Airways

Find Deal

Fri, Oct 17 - Sun, Oct 19

8:45 pm - 12:09 pmISP-PIT

15h 24m2 stops

1:31 pm - 6:56 pmPIT-ISP

5h 25m1 stop

$339Breeze Airways

Find Deal

Sat, Oct 4 - Thu, Oct 9

JetBlue flights from Islip to Pennsylvania

Our best JetBlue deals on Islip to Pennsylvania flight tickets

JetBlue

Oct 30

ISP1:57 pmIslip Long Island

8h 32m

1 stop

DCA10:29 pmWashington, D.C. Reagan-National

Nov 4

DCA6:45 amWashington, D.C. Reagan-National

6h 17m

1 stop

ISP1:02 pmIslip Long Island

$242

Find similar

JetBlue

Oct 3

ISP4:58 pmIslip Long Island

16h 02m

1 stop

DCA9:00 amWashington, D.C. Reagan-National

Oct 5

DCA7:37 amWashington, D.C. Reagan-National

27h 13m

1 stop

ISP10:50 amIslip Long Island

$302

Find similar

JetBlue

Oct 4

ISP11:35 amIslip Long Island

6h 31m

1 stop

DCA6:06 pmWashington, D.C. Reagan-National

Oct 5

DCA7:37 amWashington, D.C. Reagan-National

27h 13m

1 stop

ISP10:50 amIslip Long Island

$318

Find similar

Frontier flights from Islip to Pennsylvania

Our best Frontier deals on Islip to Pennsylvania flight tickets

Frontier

Oct 31

ISP9:54 amIslip Long Island

8h 01m

1 stop

PHL5:55 pmPhiladelphia

Nov 2

PHL10:32 pmPhiladelphia

12h 05m

1 stop

ISP10:37 amIslip Long Island

$203

Find similar

Frontier

Oct 3

ISP5:05 pmIslip Long Island

7h 47m

1 stop

PHL12:52 amPhiladelphia

Oct 7

PHL11:34 amPhiladelphia

9h 08m

1 stop

ISP8:42 pmIslip Long Island

$237

Find similar

Frontier

Oct 6

ISP5:05 pmIslip Long Island

7h 47m

1 stop

PHL12:52 amPhiladelphia

Oct 7

PHL11:34 amPhiladelphia

9h 08m

1 stop

ISP8:42 pmIslip Long Island

$260

Find similar

Fly from

Fly to

Route

Depart

Return

Price

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 10/16

5:35 pm-11:35 pm

1 stop6h 00m

Pittsburgh

Thu 10/23

6:00 pm-11:45 pm

1 stop5h 45m

$185

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 10/31

9:54 am-5:55 pm

1 stop8h 01m

Philadelphia

Sun 11/2

10:32 pm-10:37 am

1 stop12h 05m

$203

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Mon 10/6

3:20 pm-11:05 pm

1 stop7h 45m

Pittsburgh

Wed 10/8

1:10 pm-4:05 pm

1 stop2h 55m

$229

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Mon 10/6

5:35 pm-11:35 pm

1 stop6h 00m

Pittsburgh

Wed 10/8

6:10 am-12:25 pm

2 stops6h 15m

$234

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 10/3

5:05 pm-12:52 am

1 stop7h 47m

Philadelphia

Tue 10/7

11:34 am-8:42 pm

1 stop9h 08m

$237

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Thu 10/30

1:57 pm-10:29 pm

1 stop8h 32m

Washington, D.C. Reagan-National

Tue 11/4

6:45 am-1:02 pm

1 stop6h 17m

$242

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Mon 10/6

5:05 pm-12:52 am

1 stop7h 47m

Philadelphia

Tue 10/7

11:34 am-8:42 pm

1 stop9h 08m

$260

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Fri 10/3

4:58 pm-9:00 am

1 stop16h 02m

Washington, D.C. Reagan-National

Sun 10/5

7:37 am-10:50 am

1 stop27h 13m

$302

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 10/17

8:47 pm-7:46 am

1 stop10h 59m

Pittsburgh

Sun 10/19

1:31 pm-6:56 pm

1 stop5h 25m

$309

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Sat 10/4

8:45 pm-12:09 pm

2 stops15h 24m

Pittsburgh

Thu 10/9

1:31 pm-6:56 pm

1 stop5h 25m

$339

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

What airlines fly to Pennsylvania?

United Airlines, Spirit Airlines and American Airlines are the top three most popular airlines that fly to Pennsylvania from Islip according to our data. United Airlines is the first choice among our users, with 28% of people opting to fly with this airline when traveling to Pennsylvania. Keep in mind that there are 6 different airlines that fly to Pennsylvania on a routine basis, so you have a few additional options to choose from.

Cheap Islip to Pennsylvania flight deals and tips

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

Direct flights	None

There are no direct flights from Islip to Pennsylvania. There are no popular flight routes from Islip 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 many operators does momondo search for flights from Islip Long Island Airport to Pennsylvania?
As of September 2025, there is 1 operator available to choose from for flights from Islip Long Island Airport to Pennsylvania.
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.

Best airlines flying from Islip to Pennsylvania

Compare and see reviews for airlines that fly from Islip to Pennsylvania with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $183	Free Cancellation	Rating 8.0 4,242 reviews		Search Southwest flights

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.

An easier way to manage your Pennsylvania trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Pennsylvania

Popular cities in Pennsylvania

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Cheap flights from Islip to Pennsylvania from $112

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip to Pennsylvania departing on 9/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Islip to Pennsylvania

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JetBlue flights from Islip to Pennsylvania

Our best JetBlue deals on Islip to Pennsylvania flight tickets

Frontier flights from Islip to Pennsylvania

Our best Frontier deals on Islip to Pennsylvania flight tickets

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How to get the cheapest flight ticket from Islip 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, JetBlue, and Southwest are the most popular carriers operating from Islip Long Island to Pennsylvania

What airlines fly to Pennsylvania?

Cheap Islip to Pennsylvania flight deals and tips

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

Direct flights

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

How many operators does momondo search for flights from Islip Long Island Airport to Pennsylvania?

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

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

Best airlines flying from Islip to Pennsylvania

Compare and see reviews for airlines that fly from Islip to Pennsylvania with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Pennsylvania trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Pennsylvania

Popular cities in Pennsylvania

Popular flights according to clicks in the last 7 days on momondo