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$113+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PHL
Jan 25 — Feb 11
Sat 1/25
Sat 2/1
1 adult, Economy
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Cheap flight deals from Islip to Pennsylvania

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Pennsylvania (USPA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 20, 2025.

Round-trip from

$212
(Frontier)

One-way from

$113
(Trip.com)
From Islip Long Island to Pennsylvania
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One-way flight from Islip Long Island to Pennsylvania
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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 January 20, 2025.

This Frontier deal was found by Cheapflights users on 1/18. 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.
Thu 3/139:04 pmISP - PIT
1 stop12h 12mFrontier
Mon 3/179:46 amPIT - ISP
1 stop10h 18mFrontier
Deal found 1/18$212
This Mytrip deal was found by Cheapflights users on 1/19. 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.
Mon 2/35:20 pmISP - LGA
2 stops24h 27mMultiple Airlines
Fri 2/711:59 amLGA - ISP
3 stops25h 56mMultiple Airlines
Deal found 1/19$277
This Trip.com deal was found by Cheapflights users on 1/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/249:11 pmISP - LGA
2 stops18h 12mFrontier
Fri 1/3110:59 amLGA - ISP
1 stop9h 22mFrontier
Deal found 1/19$301
This Southwest deal was found by Cheapflights users on 1/19. 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.
Fri 5/95:40 amISP - PIT
1 stop6h 25mSouthwest
Sun 5/116:25 pmPIT - ISP
1 stop5h 40mSouthwest
Deal found 1/19$307
This JetBlue deal was found by Cheapflights users on 1/19. 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 9/126:00 amISP - LGA
1 stop6h 31mJetBlue
Fri 9/124:45 pmLGA - ISP
1 stop4h 55mJetBlue
Deal found 1/19$373
This Southwest deal was found by Cheapflights users on 1/20. 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.
Fri 4/44:20 pmISP - DCA
1 stop6h 00mSouthwest
Mon 4/76:55 amDCA - ISP
1 stop6h 45mSouthwest
Deal found 1/20$387
This Trip.com deal was found by Cheapflights users on 1/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2412:43 pmISP - PHL
1 stop8h 40mFrontier
Sat 1/257:20 amPHL - ISP
1 stop26h 33mFrontier
Deal found 1/19$408
This Mytrip deal was found by Cheapflights users on 1/19. 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.
Thu 1/307:25 pmISP - PIT
3 stops20h 47mMultiple Airlines
Sun 2/26:27 pmPIT - ISP
2 stops18h 49mMultiple Airlines
Deal found 1/19$449
This JetBlue deal was found by Cheapflights users on 1/20. 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.
Wed 2/1911:31 amISP - JFK
1 stop9h 59mJetBlue
Wed 2/266:30 amJFK - ISP
1 stop7h 25mJetBlue
Deal found 1/20$457

Find flights from Islip to Pennsylvania within your budget

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 January 20, 2025.

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Price

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 3/13

9:04 pm-9:16 am

1 stop12h 12m

Pittsburgh

Mon 3/17

9:46 am-8:04 pm

1 stop10h 18m

$212

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 2/3

5:20 pm-5:47 pm

2 stops24h 27m

New York LaGuardia

Tue 2/11

9:59 am-1:55 pm

3 stops27h 56m

$259

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 5/9

5:40 am-12:05 pm

1 stop6h 25m

Pittsburgh

Sun 5/11

6:25 pm-12:05 am

1 stop5h 40m

$307

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Fri 4/4

4:20 pm-10:20 pm

1 stop6h 00m

Washington, D.C. Reagan-National

Mon 4/7

6:55 am-1:40 pm

1 stop6h 45m

$387

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sat 2/1

7:25 pm-8:50 pm

3 stops25h 25m

Philadelphia

Wed 2/5

8:10 pm-6:40 pm

3 stops22h 30m

$440

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 1/30

7:25 pm-4:12 pm

3 stops20h 47m

Pittsburgh

Sun 2/2

6:27 pm-1:16 pm

2 stops18h 49m

$449

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Wed 2/19

11:31 am-9:30 pm

1 stop9h 59m

New York John F Kennedy Intl

Wed 2/26

6:30 am-1:55 pm

1 stop7h 25m

$457

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Tue 2/18

9:33 pm-7:30 am

1 stop9h 57m

$113

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Mon 2/17

2:00 pm-8:40 pm

1 stop6h 40m

$274

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Mon 7/7

3:55 pm-10:41 am

2 stops18h 46m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 11 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.

Travel insights for flights from Islip to Pennsylvania

Get recent, data-driven insights about flights from Islip to Pennsylvania including ideal travel times, pricing trends, and more.

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 January 20, 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 January 20, 2025.
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Breeze Airways
8.1
Very good
142 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,201 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Frontier
6.1
Okay
3,441 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 $113 on Frontier. Other airlines that offer cheap prices include Southwest from $274 and Breeze Airways from $320 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.

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Alternative routes for Islip to Pennsylvania

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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 January 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$280Average$326FlexibilityNo cancel feeOn-time63%
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