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Islip

$79+ Cheap flights from Pennsylvania to Islip, NY (ISP)

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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ISP
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap flight deals from Pennsylvania to Islip

Keep the following information in mind while searching for Pennsylvania to Islip flight deals. Data was last updated April 24, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$165
(Flightnetwork)

One-way from

$79
(Cheapflightsfares)

Popular in

November

Cheapest in

August

Average price

$285
Provider with most accurate pricing for Philadelphia-New York (NYC) flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-New York (NYC) flights.
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From Pennsylvania to Islip Long Island
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One-way flight from Pennsylvania to Islip Long Island
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Highest demand for flights based on searches. 23% potential increase in price ($100 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Pennsylvania to Islip

Cheapest flights from Pennsylvania to Islip
Explore the most affordable flight options available from Pennsylvania to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/23. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/711:33 amIAD - ISP
1 stop8h 47mFrontier
Sat 6/148:21 pmISP - IAD
1 stop16h 23mFrontier
Deal found 4/23$165
This CheapOair deal was found by Cheapflights users on 4/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/196:14 pmPIT - ISP
1 stop17h 12mFrontier
Sat 5/249:06 pmISP - PIT
1 stop21h 11mFrontier
Deal found 4/23$172
This JetBlue deal was found by Cheapflights users on 4/22. 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.
Mon 8/43:00 pmDCA - ISP
1 stop6h 15mJetBlue
Wed 8/66:00 amISP - DCA
1 stop4h 38mJetBlue
Deal found 4/22$235
This JetBlue deal was found by Cheapflights users on 4/22. 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.
Thu 5/222:59 pmJFK - ISP
1 stop6h 29mJetBlue
Tue 5/276:00 amISP - JFK
1 stop4h 29mJetBlue
Deal found 4/22$241
This Southwest deal was found by Cheapflights users on 4/23. 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.
Tue 8/54:15 pmPIT - ISP
1 stop5h 50mSouthwest
Fri 8/83:05 pmISP - PIT
1 stop7h 40mSouthwest
Deal found 4/23$286
This Southwest deal was found by Cheapflights users on 4/23. 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.
Mon 6/2312:55 pmDCA - ISP
1 stop9h 15mSouthwest
Wed 6/256:25 amISP - DCA
2 stops7h 55mSouthwest
Deal found 4/23$338
This JetBlue deal was found by Cheapflights users on 4/22. 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.
Tue 5/65:30 pmPHL - ISP
1 stop3h 58mJetBlue
Tue 5/136:00 amISP - PHL
1 stop3h 38mJetBlue
Deal found 4/22$344
This JetBlue deal was found by Cheapflights users on 4/23. 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.
Tue 6/175:39 pmPIT - ISP
1 stop4h 27mJetBlue
Wed 6/256:00 amISP - PIT
1 stop6h 03mJetBlue
Deal found 4/23$358
This JetBlue deal was found by Cheapflights users on 4/23. 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.
Sun 6/297:00 amEWR - ISP
1 stop6h 43mJetBlue
Wed 7/210:38 amISP - EWR
1 stop9h 16mJetBlue
Deal found 4/23$425
This JetBlue deal was found by Cheapflights users on 4/22. 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.
Thu 5/229:37 amLGA - ISP
1 stop7h 13mJetBlue
Thu 5/2912:59 pmISP - LGA
1 stop7h 01mJetBlue
Deal found 4/22$452
This FlightHub deal was found by Cheapflights users on 4/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/228:25 amIAD - ISP
1 stop26h 54mMultiple Airlines
Wed 6/254:45 pmISP - IAD
1 stop24h 36mMultiple Airlines
Deal found 4/23$455
This Mytrip deal was found by Cheapflights users on 4/22. 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 5/225:30 amEWR - ISP
2 stops28h 34mMultiple Airlines
Thu 5/297:39 pmISP - EWR
2 stops12h 16mMultiple Airlines
Deal found 4/22$456

Cheapflights Fare Finder

Customize your flight search to find flights from Pennsylvania to Islip 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 April 24, 2025.
Use the filters below to find and compare flights from Pennsylvania to Islip that are best for you.

Fly from

Pennsylvania

Fly to

Islip

Route

Depart

Return

Price

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sat 6/7

11:33 am-8:20 pm

1 stop8h 47m

Islip Long Island

Sat 6/14

8:21 pm-12:44 pm

1 stop16h 23m

$165

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Mon 5/19

6:14 pm-11:26 am

1 stop17h 12m

Islip Long Island

Sat 5/24

9:06 pm-6:17 pm

1 stop21h 11m

$172

New YorkIslip

JFK - ISP

JFKISP

New York John F Kennedy Intl

Thu 5/22

2:59 pm-9:28 pm

1 stop6h 29m

Islip Long Island

Tue 5/27

6:00 am-10:29 am

1 stop4h 29m

$241

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Wed 5/28

3:15 pm-9:28 pm

1 stop6h 13m

Islip Long Island

Sun 6/1

6:00 am-11:00 am

1 stop5h 00m

$251

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Tue 8/5

4:15 pm-10:05 pm

1 stop5h 50m

Islip Long Island

Fri 8/8

3:05 pm-10:45 pm

1 stop7h 40m

$286

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Mon 6/23

12:55 pm-10:10 pm

1 stop9h 15m

Islip Long Island

Wed 6/25

6:25 am-2:20 pm

2 stops7h 55m

$338

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Tue 5/6

5:30 pm-9:28 pm

1 stop3h 58m

Islip Long Island

Tue 5/13

6:00 am-9:38 am

1 stop3h 38m

$344

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Tue 6/17

5:39 pm-10:06 pm

1 stop4h 27m

Islip Long Island

Wed 6/25

6:00 am-12:03 pm

1 stop6h 03m

$358

NewarkIslip

EWR - ISP

EWRISP

Newark

Sun 6/29

7:00 am-1:43 pm

1 stop6h 43m

Islip Long Island

Wed 7/2

10:38 am-7:54 pm

1 stop9h 16m

$425

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Thu 5/22

9:37 am-4:50 pm

1 stop7h 13m

Islip Long Island

Thu 5/29

12:59 pm-8:00 pm

1 stop7h 01m

$452

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

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

Have a flexible travel schedule? Discover the best time to fly to Islip from Pennsylvania 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 Pennsylvania to Islip

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

Currently, January is the cheapest month in which you can book a flight from Pennsylvania to Islip, New York (average of $108). Flying from Pennsylvania to Islip, New York in November is currently the most expensive (average of $213). 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 PA to ISP?

Find hourly flight availability from Pennsylvania to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

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

Rainfall in Islip by month

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

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

Temperature in Islip by month

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

If weather is an important factor for your trip to Islip, New York, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated April 24, 2025.
Get a feel of what it's like to fly with Breeze Airways, Southwest and JetBlue from Pennsylvania to Islip by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
159 reviews

Overall

8.1

Boarding

8.3

Comfort

8.2

Crew

8.8

Entertainment

6.7

Food

6.7

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
159 reviews
Breeze Airways
8.1
Very good
159 reviews

Overall

8.1

Boarding

8.3

Comfort

8.2

Crew

8.8

Entertainment

6.7

Food

6.7

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
4,286 reviews
Breeze Airways
8.1
Very good
159 reviews

Overall

8.1

Boarding

8.3

Comfort

8.2

Crew

8.8

Entertainment

6.7

Food

6.7

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
2,924 reviews
Breeze Airways
8.1
Very good
159 reviews

Overall

8.1

Boarding

8.3

Comfort

8.2

Crew

8.8

Entertainment

6.7

Food

6.7

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
6.0
Okay
3,283 reviews
Breeze Airways
8.1
Very good
159 reviews

Overall

8.1

Boarding

8.3

Comfort

8.2

Crew

8.8

Entertainment

6.7

Food

6.7

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 Pennsylvania to Islip. 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 into for flights to Islip from Pennsylvania?

    If you book a flight to Islip from Pennsylvania, you will be flying to Long Island, which is the city’s only airport. Islip Long Island (ISP) is located 7.2 mi from the center of Islip.

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

    The cheapest airlines for a one-way flight from Pennsylvania to Islip, New York are Frontier ($79), JetBlue ($118), and Southwest ($164).

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

    The most popular route from Pennsylvania to Islip, New York is Washington, D.C. Reagan-National - Islip Long Island. You may also consider Pittsburgh - Islip Long Island or Washington, D.C. Dulles Intl - Islip Long Island.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pennsylvania to Islip 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 Pennsylvania to Islip, New York?

    Currently, January is the cheapest month in which you can book a flight from Pennsylvania to Islip, New York (average of $108). Flying from Pennsylvania to Islip, New York in November is currently the most expensive (average of $213). 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

Traveling to a place near Pennsylvania?

Book flights to Pennsylvania if you plan to visit one of these locations
Southampton
Riverhead

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Alternative routes for Pennsylvania to Islip

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

Discover the top airline that operate flights from Pennsylvania to Islip. 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$277Average$361FlexibilityNo cancel feeOn-time63%

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