$124+ 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 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Pennsylvania to Islip with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 June 23, 2025.
Round-trip from | $174 (Southwest) |
|---|---|
One-way from | $124 (FlightHub) |
Popular in | November |
Cheapest in | August |
Average price | $278 |
Find flight deals from Pennsylvania to Islip
Cheapest flights from Pennsylvania to IslipExplore 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 June 23, 2025.
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 June 23, 2025.
This Southwest deal was found by Cheapflights users on 6/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This FlightHub deal was found by Cheapflights users on 6/21. 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.
This Frontier deal was found by Cheapflights users on 6/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Trip.com deal was found by Cheapflights users on 6/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 6/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This JetBlue deal was found by Cheapflights users on 6/21. 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.
This FlightHub deal was found by Cheapflights users on 6/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This FlightHub deal was found by Cheapflights users on 6/21. 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.
This Mytrip deal was found by Cheapflights users on 6/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This JetBlue Airways deal was found by Cheapflights users on 6/22. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This JetBlue Airways deal was found by Cheapflights users on 6/22. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 6/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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 June 23, 2025.
Use the filters below to find and compare flights from Pennsylvania to Islip that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
PittsburghIslip
PIT - ISP
PITISP
Pittsburgh
Tue 9/23
4:15 pm-10:05 pm
1 stop5h 50m
Islip Long Island
Sat 9/27
3:40 pm-9:50 pm
1 stop6h 10m
PhiladelphiaIslip
PHL - ISP
PHLISP
Philadelphia
Tue 7/8
5:30 pm-7:52 pm
1 stop26h 22m
Islip Long Island
Thu 7/10
6:00 am-12:18 pm
1 stop6h 18m
Washington, D.C.Islip
IAD - ISP
IADISP
Washington, D.C. Dulles Intl
Thu 7/17
1:36 pm-11:47 pm
1 stop10h 11m
Islip Long Island
Sun 7/20
6:00 am-7:01 pm
1 stop13h 01m
Washington, D.C.Islip
IAD - ISP
IADISP
Washington, D.C. Dulles Intl
Fri 7/11
6:07 pm-1:04 pm
1 stop18h 57m
Islip Long Island
Sun 7/13
7:49 pm-8:05 am
1 stop12h 16m
Washington, D.C.Islip
DCA - ISP
DCAISP
Washington, D.C. Reagan-National
Sat 8/9
8:00 am-4:10 pm
1 stop8h 10m
Islip Long Island
Tue 8/12
4:00 pm-10:00 pm
1 stop6h 00m
New YorkIslip
JFK - ISP
JFKISP
New York John F Kennedy Intl
Fri 9/12
8:20 am-2:44 pm
1 stop6h 24m
Islip Long Island
Sun 9/14
3:39 pm-10:58 pm
1 stop7h 19m
PittsburghIslip
PIT - ISP
PITISP
Pittsburgh
Sun 7/20
9:56 am-11:47 pm
1 stop13h 51m
Islip Long Island
Sun 7/27
7:39 pm-8:46 am
2 stops13h 07m
PittsburghIslip
PIT - ISP
PITISP
Pittsburgh
Tue 7/15
9:08 pm-1:32 pm
1 stop16h 24m
Islip Long Island
Thu 7/17
7:39 pm-8:46 am
2 stops13h 07m
PhiladelphiaIslip
PHL - ISP
PHLISP
Philadelphia
Thu 9/4
2:24 pm-1:45 pm
3 stops23h 21m
Islip Long Island
Sun 9/7
7:36 pm-5:10 pm
3 stops21h 34m
New YorkIslip
JFK - ISP
JFKISP
New York John F Kennedy Intl
Tue 8/26
8:25 pm-11:41 am
1 stop15h 16m
Islip Long Island
Sun 8/31
2:19 pm-9:04 pm
1 stop6h 45m
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.
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 June 23, 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 June 23, 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.
Crew
Entertainment
Comfort
Boarding
Food
Overall
Reviews
Dena,Dec 2024
LAS - BDL
Crew
Entertainment
Comfort
Boarding
Food
Overall
Reviews
Dena,Dec 2024
LAS - BDL
Crew
Entertainment
Comfort
Boarding
Food
Overall
Reviews
Dena,Dec 2024
LAS - BDL
Crew
Entertainment
Comfort
Boarding
Food
Overall
Reviews
Dena,Dec 2024
LAS - BDL
Crew
Entertainment
Comfort
Boarding
Food
Overall
Reviews
Dena,Dec 2024
LAS - BDL
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.
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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.
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 June 23, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$254 | Average$333 | FlexibilityNo cancel fee | On-time63% |