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Pennsylvania

$127+ Cheap flights from Islip, NY (ISP) to Pennsylvania

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PHL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Islip to Pennsylvania

Keep the following information in mind while searching for Islip to Pennsylvania flight deals. Data was last updated June 12, 2025.

Round-trip from

$208
(Southwest)

One-way from

$127
(JetBlue)

Popular in

April

Cheapest in

September

Average price

$306
From Islip Long Island to Pennsylvania
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One-way flight from Islip Long Island to Pennsylvania
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Highest demand for flights based on searches. 17% potential increase in price ($67 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Islip to Pennsylvania

Cheapest flights from Islip to Pennsylvania
Explore the most affordable flight options available from Islip to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1312:55 pmISP - PIT
1 stop7h 30mSouthwest
Sun 9/146:05 pmPIT - ISP
1 stop5h 45mSouthwest
Deal found 6/10$208
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/34:00 pmISP - DCA
1 stop6h 00mSouthwest
Wed 9/176:55 amDCA - ISP
1 stop6h 20mSouthwest
Deal found 6/10$255
This Frontier deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/258:00 amISP - PHL
1 stop4h 23mFrontier
Sat 6/286:35 pmPHL - ISP
1 stop4h 17mFrontier
Deal found 6/11$298
This Frontier deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:45 amISP - PIT
2 stops9h 42mFrontier
Sun 8/248:56 pmPIT - ISP
1 stop11h 12mFrontier
Deal found 6/12$355
This JetBlue deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/111:40 amISP - JFK
1 stop10h 19mJetBlue
Wed 8/136:30 amJFK - ISP
1 stop6h 11mJetBlue
Deal found 6/10$450
This KAYAK deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/92:12 pmISP - PIT
1 stop18h 32mBreeze Airways
Tue 7/159:08 pmPIT - ISP
1 stop16h 24mBreeze Airways
Deal found 6/11$523
This Booking.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/252:12 pmISP - PIT
1 stop18h 32mMultiple Airlines
Sun 6/299:50 amPIT - ISP
1 stop9h 46mMultiple Airlines
Deal found 6/10$526
This JetBlue Airways deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/147:30 amISP - DCA
1 stop7h 15mMultiple Airlines
Mon 8/188:00 pmDCA - ISP
1 stop15h 41mMultiple Airlines
Deal found 6/10$550
This JetBlue Airways deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/37:30 amISP - JFK
1 stop7h 45mMultiple Airlines
Tue 7/89:40 pmJFK - ISP
1 stop14h 01mMultiple Airlines
Deal found 6/10$579
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/252:55 pmISP - PHL
2 stops31h 44mMultiple Airlines
Sun 6/296:20 amPHL - ISP
2 stops12h 39mMultiple Airlines
Deal found 6/10$602
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/182:55 pmISP - LGA
3 stops32h 22mMultiple Airlines
Sat 6/218:48 pmLGA - ISP
2 stops22h 11mMultiple Airlines
Deal found 6/11$839
This JetBlue deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/131:21 pmISP - DCA
1 stop7h 38mJetBlue
Sun 6/157:00 amDCA - ISP
1 stop6h 43mJetBlue
Deal found 6/10$840

Cheapflights Fare Finder

Customize your flight search to find flights from Islip to Pennsylvania 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Islip to Pennsylvania that are best for you.

Fly from

Islip

Fly to

Pennsylvania

Route

Depart

Return

Price

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Sat 9/13

12:55 pm-8:25 pm

1 stop7h 30m

Pittsburgh

Sun 9/14

6:05 pm-11:50 pm

1 stop5h 45m

$208

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Wed 9/3

4:00 pm-10:00 pm

1 stop6h 00m

Washington, D.C. Reagan-National

Wed 9/17

6:55 am-1:15 pm

1 stop6h 20m

$255

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Wed 6/25

8:00 am-12:23 pm

1 stop4h 23m

Philadelphia

Sat 6/28

6:35 pm-10:52 pm

1 stop4h 17m

$298

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 8/22

6:45 am-4:27 pm

2 stops9h 42m

Pittsburgh

Sun 8/24

8:56 pm-8:08 am

1 stop11h 12m

$355

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Fri 8/1

11:40 am-9:59 pm

1 stop10h 19m

New York John F Kennedy Intl

Wed 8/13

6:30 am-12:41 pm

1 stop6h 11m

$450

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Wed 7/9

2:12 pm-8:44 am

1 stop18h 32m

Pittsburgh

Tue 7/15

9:08 pm-1:32 pm

1 stop16h 24m

$523

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Wed 6/25

2:12 pm-8:44 am

1 stop18h 32m

Pittsburgh

Sun 6/29

9:50 am-7:36 pm

1 stop9h 46m

$526

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Thu 8/14

7:30 am-2:45 pm

1 stop7h 15m

Washington, D.C. Reagan-National

Mon 8/18

8:00 pm-11:41 am

1 stop15h 41m

$550

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Thu 7/3

7:30 am-3:15 pm

1 stop7h 45m

New York John F Kennedy Intl

Tue 7/8

9:40 pm-11:41 am

1 stop14h 01m

$579

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Wed 6/25

2:55 pm-10:39 pm

2 stops31h 44m

Philadelphia

Sun 6/29

6:20 am-6:59 pm

2 stops12h 39m

$602

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 25 results
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Best time to book a flight from Islip to Pennsylvania

Have a flexible travel schedule? Discover the best time to fly to Pennsylvania from Islip with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Islip to Pennsylvania

What is the cheapest month to book a flight from Islip, New York to Pennsylvania?

Currently, August is the cheapest month in which you can book a flight from Islip, New York to Pennsylvania (average of $236). Flying from Islip, New York to Pennsylvania in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ISP to PA?

Find hourly flight availability from Islip to Pennsylvania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York to Pennsylvania as you normally would.

Rainfall in Pennsylvania by month

Plan your trip to Pennsylvania by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Pennsylvania ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Pennsylvania when rainfall is around 2.7 in.

Temperature in Pennsylvania by month

Plan your trip to Pennsylvania by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Pennsylvania, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Pennsylvania

Get insights into the airlines that provide service to Pennsylvania. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pennsylvania. Reviews last updated June 12, 2025.
See what other customers who have flown with Breeze Airways, Southwest and JetBlue from Islip to Pennsylvania have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Entertainment

6.6

Overall

8.1

Comfort

8.2

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
178 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Entertainment

6.6

Overall

8.1

Comfort

8.2

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,287 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Entertainment

6.6

Overall

8.1

Comfort

8.2

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
JetBlue
7.3
Good
2,925 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Entertainment

6.6

Overall

8.1

Comfort

8.2

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Frontier
5.9
Fair
3,295 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Entertainment

6.6

Overall

8.1

Comfort

8.2

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Related info for your journey

Find useful and relevant information for your journey from Islip to Pennsylvania. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Islip to Pennsylvania?

    Located just 7.2 mi from the city center, Islip Long Island (ISP) is the airport most travelers will use when flying to Pennsylvania from Islip.

  • What are the cheapest airlines to fly from Islip, New York to Pennsylvania one-way?

    One-way options have recently been found by users for as low as $127 on JetBlue. Other airlines that offer cheap prices include Frontier from $130 and Southwest from $141 one-way.

  • What are the most popular routes from Islip, New York to Pennsylvania?

    When deciding which route to take from Islip, New York to Pennsylvania consider Islip Long Island - Pittsburgh, Islip Long Island - Washington, D.C. Reagan-National or Islip Long Island - Philadelphia as they are the most popular.

  • Can I find deals for flights from Islip to Pennsylvania that include hotel bookings?

    Yes. In addition to deals on Islip to Pennsylvania flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Pennsylvania?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Pennsylvania.

  • Can I find deals for business class flights from Islip to Pennsylvania?

    Yes. Cheapflights offers flight deals from Islip to Pennsylvania by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Islip, New York to Pennsylvania?

    Currently, August is the cheapest month in which you can book a flight from Islip, New York to Pennsylvania (average of $236). Flying from Islip, New York to Pennsylvania in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Islip to Pennsylvania

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Islip to Pennsylvania

Discover the top airline that operate flights from Islip to Pennsylvania. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$280Average$326FlexibilityNo cancel feeOn-time63%

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