HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$80+ 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ISP
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$183
(JetBlue)

One-way from

$80
(Frontier)

Popular in

November

Cheapest in

August

Average price

$317
Provider with most accurate pricing for Philadelphia-New York (NYC) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-New York (NYC) flights.
Search Deals
From Pennsylvania to Islip Long Island
Search Deals
One-way flight from Pennsylvania to Islip Long Island
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($115 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 March 28, 2025.

This JetBlue deal was found by Cheapflights users on 3/26. 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 5/84:15 pmDCA - ISP
1 stop5h 13mJetBlue
Tue 5/136:00 amISP - DCA
1 stop7h 14mJetBlue
Deal found 3/26$183
This Booking.com deal was found by Cheapflights users on 3/27. 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.
Sat 6/146:07 pmIAD - ISP
1 stop18h 59mFrontier
Mon 6/168:21 pmISP - IAD
1 stop16h 23mFrontier
Deal found 3/27$190
This JetBlue deal was found by Cheapflights users on 3/27. 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 5/12:50 pmJFK - ISP
1 stop6h 38mJetBlue
Wed 5/76:00 amISP - JFK
1 stop10h 27mJetBlue
Deal found 3/27$202
This Booking.com deal was found by Cheapflights users on 3/27. 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.
Mon 3/3112:04 pmPIT - ISP
1 stop21h 56mFrontier
Tue 4/19:04 pmISP - PIT
1 stop13h 44mFrontier
Deal found 3/27$230
This Southwest deal was found by Cheapflights users on 3/27. 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 10/151:10 pmPIT - ISP
1 stop2h 55mSouthwest
Wed 10/2211:40 amISP - PIT
1 stop6h 20mSouthwest
Deal found 3/27$267
This Southwest deal was found by Cheapflights users on 3/27. 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 6/141:35 pmDCA - ISP
1 stop8h 25mSouthwest
Mon 6/165:05 amISP - DCA
1 stop6h 20mSouthwest
Deal found 3/27$337
This Trip.com deal was found by Cheapflights users on 3/27. 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 4/1110:59 pmPHL - ISP
1 stop9h 11mFrontier
Tue 4/1510:50 amISP - PHL
1 stop9h 10mFrontier
Deal found 3/27$362
This JetBlue deal was found by Cheapflights users on 3/27. 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 5/16:59 amEWR - ISP
1 stop9h 51mJetBlue
Wed 5/71:41 pmISP - EWR
1 stop8h 21mJetBlue
Deal found 3/27$368
This Trip.com deal was found by Cheapflights users on 3/27. 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.
Sun 3/306:00 amJFK - ISP
1 stop14h 03mFrontier
Sun 4/69:09 pmISP - JFK
1 stop27h 34mFrontier
Deal found 3/27$376
This JetBlue deal was found by Cheapflights users on 3/27. 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 5/15:30 pmPHL - ISP
1 stop3h 58mJetBlue
Sat 5/36:00 amISP - PHL
1 stop3h 41mJetBlue
Deal found 3/27$377
This JetBlue deal was found by Cheapflights users on 3/27. 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 9/164:25 pmPIT - ISP
1 stop5h 15mJetBlue
Tue 9/306:00 amISP - PIT
1 stop4h 00mJetBlue
Deal found 3/27$444
This FlightHub deal was found by Cheapflights users on 3/26. 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.
Thu 5/228:25 amIAD - ISP
1 stop26h 37mMultiple Airlines
Sat 5/242:04 pmISP - IAD
1 stop27h 05mMultiple Airlines
Deal found 3/26$454

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 March 28, 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

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Thu 5/8

4:15 pm-9:28 pm

1 stop5h 13m

Islip Long Island

Tue 5/13

6:00 am-1:14 pm

1 stop7h 14m

$183

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sat 6/14

6:07 pm-1:06 pm

1 stop18h 59m

Islip Long Island

Mon 6/16

8:21 pm-12:44 pm

1 stop16h 23m

$190

New YorkIslip

JFK - ISP

JFKISP

New York John F Kennedy Intl

Thu 5/1

2:50 pm-9:28 pm

1 stop6h 38m

Islip Long Island

Wed 5/7

6:00 am-4:27 pm

1 stop10h 27m

$202

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Mon 4/14

9:46 am-10:00 am

1 stop24h 14m

Islip Long Island

Tue 4/15

9:04 pm-10:48 am

1 stop13h 44m

$258

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Thu 4/24

10:05 am-5:25 pm

1 stop7h 20m

Islip Long Island

Sun 4/27

6:25 pm-11:55 pm

1 stop5h 30m

$326

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Sat 6/14

1:35 pm-10:00 pm

1 stop8h 25m

Islip Long Island

Mon 6/16

5:05 am-11:25 am

1 stop6h 20m

$337

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Fri 4/11

10:59 pm-8:10 am

1 stop9h 11m

Islip Long Island

Tue 4/15

10:50 am-8:00 pm

1 stop9h 10m

$362

NewarkIslip

EWR - ISP

EWRISP

Newark

Thu 5/1

6:59 am-4:50 pm

1 stop9h 51m

Islip Long Island

Wed 5/7

1:41 pm-10:02 pm

1 stop8h 21m

$368

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Thu 5/1

5:30 pm-9:28 pm

1 stop3h 58m

Islip Long Island

Sat 5/3

6:00 am-9:41 am

1 stop3h 41m

$377

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Tue 9/16

4:25 pm-9:40 pm

1 stop5h 15m

Islip Long Island

Tue 9/30

6:00 am-10:00 am

1 stop4h 00m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 28 results
1
2
3

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 March 28, 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 March 28, 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
157 reviews

Comfort

8.2

Crew

8.8

Food

6.7

Boarding

8.3

Entertainment

6.6

Overall

8.1

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
157 reviews
Breeze Airways
8.1
Very good
157 reviews

Comfort

8.2

Crew

8.8

Food

6.7

Boarding

8.3

Entertainment

6.6

Overall

8.1

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
8.1
Very good
4,274 reviews
Breeze Airways
8.1
Very good
157 reviews

Comfort

8.2

Crew

8.8

Food

6.7

Boarding

8.3

Entertainment

6.6

Overall

8.1

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
2,923 reviews
Breeze Airways
8.1
Very good
157 reviews

Comfort

8.2

Crew

8.8

Food

6.7

Boarding

8.3

Entertainment

6.6

Overall

8.1

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
3,271 reviews
Breeze Airways
8.1
Very good
157 reviews

Comfort

8.2

Crew

8.8

Food

6.7

Boarding

8.3

Entertainment

6.6

Overall

8.1

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 ($80), JetBlue ($108), and Southwest ($143).

  • 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 Washington, D.C. Dulles Intl - Islip Long Island or Pittsburgh - 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pennsylvania to Islip

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to LaGuardia flights
Los Angeles to Newark flights
Los Angeles to John F Kennedy Intl flights
Dallas/Fort Worth to Newark flights
Los Angeles to LaGuardia flights
San Francisco to Newark flights
Fort Lauderdale to Newark flights
Atlanta to LaGuardia flights
San Francisco to John F Kennedy Intl flights
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Newark flights
Fort Lauderdale to LaGuardia flights
Dallas/Fort Worth to John F Kennedy Intl flights
Seattle to Newark flights
O'Hare Intl to LaGuardia flights
Miami to John F Kennedy Intl flights
Miami to LaGuardia flights
Atlanta to John F Kennedy Intl flights
Miami to Newark flights
Burbank to Newark flights
Fort Lauderdale to John F Kennedy Intl flights
Seattle to John F Kennedy Intl flights
San Francisco to LaGuardia flights
Atlanta to Newark flights
Denver to John F Kennedy Intl flights
Hobby to Newark flights
San Diego to John F Kennedy Intl flights
Orlando to LaGuardia flights
Tampa to Newark flights
Hobby to LaGuardia flights
Ontario to Newark flights
Minneapolis to LaGuardia flights
San Diego to Newark flights
Denver to Newark flights
Midway to Newark flights
Denver to LaGuardia flights
Santa Ana to Newark flights
Orlando to John F Kennedy Intl flights
George Bush Intcntl to Newark flights
Midway to John F Kennedy Intl flights
Charlotte to John F Kennedy Intl flights
Detroit to John F Kennedy Intl flights
Seattle to LaGuardia flights
Burbank to LaGuardia flights
West Palm Beach to John F Kennedy Intl flights
Detroit to Newark flights
Boston to Newark flights
Orlando to Newark flights
Tampa to John F Kennedy Intl flights
Raleigh to LaGuardia flights

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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$277Average$361FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.