$98+ Cheap flights from Pennsylvania to Islip, NY (ISP)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ISP
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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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
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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 October 30, 2026.
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 October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/27. 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.
Thu 11/2611:45 am -
1 stop5h 05m
Sat 12/53:30 pm -
1 stop6h 05m
Deal found 10/27![Southwest logo]()
$195
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:15 am -
2 stops9h 00m
Tue 12/86:05 am -
2 stops7h 35m
Deal found 10/26![Southwest logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:30 am -
1 stop25h 50m
Sat 11/1412:00 pm -
1 stop4h 24m
Deal found 10/26![Multiple Airlines logo]()
$281
This Southwest deal was found by Cheapflights users on 10/27. 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.
Fri 11/135:50 pm -
1 stop5h 45m
Sun 11/155:40 pm -
1 stop6h 15m
Deal found 10/27![Southwest logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:54 pm -
1 stop14h 26m
Fri 11/133:02 pm -
1 stop5h 12m
Deal found 10/25![Breeze Airways logo]()
$408
This Southwest deal was found by Cheapflights users on 10/25. 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 11/94:00 pm -
2 stops7h 35m
Fri 11/135:40 pm -
1 stop6h 15m
Deal found 10/25![Southwest logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:54 pm -
1 stop14h 26m
Thu 11/57:45 pm -
1 stop23h 50m
Deal found 10/26![Breeze Airways logo]()
$496
This Southwest deal was found by Cheapflights users on 10/28. 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 11/249:20 pm -
1 stop11h 25m
Sat 11/286:00 pm -
1 stop7h 20m
Deal found 10/28![Southwest logo]()
$505
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:54 pm -
1 stop14h 26m
Wed 11/43:43 pm -
1 stop18h 47m
Deal found 10/26![Breeze Airways logo]()
$512
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:55 pm -
2 stops7h 50m
Sat 11/1412:45 pm -
2 stops8h 20m
Deal found 10/26![Southwest logo]()
$519
This Frontier deal was found by Cheapflights users on 10/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:07 am -
1 stop6h 38m
Mon 11/304:40 pm -
1 stop6h 21m
Deal found 10/26![Frontier logo]()
$595
This Southwest deal was found by Cheapflights users on 10/28. 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 12/11:55 pm -
1 stop7h 15m
Fri 12/45:05 pm -
1 stop6h 10m
Deal found 10/28![Southwest logo]()
$628
Best flights from Pennsylvania to IslipDiscover carefully curated flight deals from Pennsylvania to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Pennsylvania to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:20 pm -
1 stop3h 55m
Tue 12/86:05 am -
1 stop5h 40m
Deal found 10/26![Southwest logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:30 am -
1 stop25h 50m
Sat 11/1412:00 pm -
1 stop4h 24m
Deal found 10/26![Multiple Airlines logo]()
$281
This Southwest deal was found by Cheapflights users on 10/27. 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.
Thu 11/2611:45 am -
1 stop5h 05m
Sat 12/53:30 pm -
1 stop6h 05m
Deal found 10/27![Southwest logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:54 pm -
1 stop14h 26m
Fri 11/133:02 pm -
1 stop5h 12m
Deal found 10/25![Breeze Airways logo]()
$408
This Frontier deal was found by Cheapflights users on 10/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:07 am -
1 stop6h 38m
Mon 11/304:40 pm -
1 stop6h 21m
Deal found 10/26![Frontier logo]()
$595
This Southwest deal was found by Cheapflights users on 10/27. 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.
Fri 11/135:50 pm -
1 stop5h 45m
Sun 11/155:40 pm -
1 stop6h 15m
Deal found 10/27![Southwest logo]()
$391
This Southwest deal was found by Cheapflights users on 10/25. 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 11/94:00 pm -
2 stops7h 35m
Fri 11/135:40 pm -
1 stop6h 15m
Deal found 10/25![Southwest logo]()
$414
This FlightHub deal was found by Cheapflights users on 10/26. 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.
Sat 11/76:00 am -
1 stop15h 37m
Sun 11/86:00 am -
1 stop17h 43m
Deal found 10/26![JetBlue logo]()
$1,072
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:55 pm -
2 stops7h 50m
Sat 11/1412:45 pm -
2 stops8h 20m
Deal found 10/26![Southwest logo]()
$519
This Southwest deal was found by Cheapflights users on 10/28. 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 12/11:55 pm -
1 stop7h 15m
Fri 12/45:05 pm -
1 stop6h 10m
Deal found 10/28![Southwest logo]()
$628
This Expedia deal was found by Cheapflights users on 10/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:30 am -
2 stops13h 10m
Fri 12/47:00 am -
2 stops9h 27m
Deal found 10/28![JetBlue logo]()
$29,344
Last-minute flights from Pennsylvania to IslipDiscover last-minute flight deals from Pennsylvania to Islip. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Pennsylvania to Islip. Data last updated October 30, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:54 pm -
1 stop14h 26m
Thu 11/57:45 pm -
1 stop23h 50m
Deal found 10/26![Breeze Airways logo]()
$496
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:54 pm -
1 stop14h 26m
Wed 11/43:43 pm -
1 stop18h 47m
Deal found 10/26![Breeze Airways logo]()
$512
This FlightHub deal was found by Cheapflights users on 10/26. 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.
Sat 11/76:00 am -
1 stop15h 37m
Sun 11/86:00 am -
1 stop17h 43m
Deal found 10/26![JetBlue logo]()
$1,072
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:54 pm -
1 stop14h 26m
Fri 11/133:02 pm -
1 stop5h 12m
Deal found 10/25![Breeze Airways logo]()
$408
This Southwest deal was found by Cheapflights users on 10/25. 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 11/94:00 pm -
2 stops7h 35m
Fri 11/135:40 pm -
1 stop6h 15m
Deal found 10/25![Southwest logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:30 am -
1 stop25h 50m
Sat 11/1412:00 pm -
1 stop4h 24m
Deal found 10/26![Multiple Airlines logo]()
$281
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:55 pm -
2 stops7h 50m
Sat 11/1412:45 pm -
2 stops8h 20m
Deal found 10/26![Southwest logo]()
$519
This Southwest deal was found by Cheapflights users on 10/27. 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.
Fri 11/135:50 pm -
1 stop5h 45m
Sun 11/155:40 pm -
1 stop6h 15m
Deal found 10/27![Southwest logo]()
$391
This Frontier deal was found by Cheapflights users on 10/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:07 am -
1 stop6h 38m
Mon 11/304:40 pm -
1 stop6h 21m
Deal found 10/26![Frontier logo]()
$595
This Southwest deal was found by Cheapflights users on 10/28. 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 11/249:20 pm -
1 stop11h 25m
Sat 11/286:00 pm -
1 stop7h 20m
Deal found 10/28![Southwest logo]()
$505
This Southwest deal was found by Cheapflights users on 10/27. 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.
Thu 11/2611:45 am -
1 stop5h 05m
Sat 12/53:30 pm -
1 stop6h 05m
Deal found 10/27![Southwest logo]()
$195
One-way flights from Pennsylvania to IslipSearch for one-way flight options from Pennsylvania to Islip. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Pennsylvania to Islip. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/29. 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 12/212:20 pm -
1 stop3h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Southwest logo]()
$98
This Southwest deal was found by Cheapflights users on 10/30. 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.
Sun 12/205:45 pm -
1 stop6h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Southwest logo]()
$128
This Southwest deal was found by Cheapflights users on 10/29. 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 12/112:20 pm -
1 stop3h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Southwest logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:07 am -
1 stop30h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:15 am -
1 stop28h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Breeze Airways logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/33:09 pm -
2 stops23h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/11:41 pm -
3 stops44h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:28 pm -
1 stop13h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Breeze Airways logo]()
$261
This CheapOair deal was found by Cheapflights users on 10/28. 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.
Sat 11/146:00 am -
1 stop15h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![JetBlue logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2910:07 pm -
2 stops37h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2910:07 pm -
1 stop17h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$441
Find flight deals from Pennsylvania to Islip
Keep the following information in mind while searching for Pennsylvania to Islip flight deals. Data was last updated October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $195 (Southwest) |
One-way from | $98 (Southwest) |
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 7,457,451 searches. Data last updated October 30, 2026.
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
Cheapest round-trip
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Sun 12/20
5:45 pm-11:50 pm
1 stop6h 05m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$128
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Wed 12/2
12:20 pm-4:15 pm
1 stop3h 55m
Islip Long Island
Tue 12/8
6:05 am-11:45 am
1 stop5h 40m
$195
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Thu 11/26
11:45 am-4:50 pm
1 stop5h 05m
Islip Long Island
Sat 12/5
3:30 pm-9:35 pm
1 stop6h 05m
$195
Quickest round-trip
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Tue 12/1
12:20 pm-4:15 pm
1 stop3h 55m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$204
PhiladelphiaIslip
PHL Philadelphia - ISP Islip Long Island
PHLISP
Philadelphia
Mon 11/23
9:07 am-3:45 pm
1 stop30h 38m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$206
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Tue 12/1
10:15 am-2:45 pm
1 stop28h 30m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$206
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Tue 12/1
1:41 pm-10:17 am
3 stops44h 36m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$246
PhiladelphiaIslip
PHL Philadelphia - ISP Islip Long Island
PHLISP
Philadelphia
Tue 11/10
9:30 am-11:20 am
1 stop25h 50m
Islip Long Island
Sat 11/14
12:00 pm-4:24 pm
1 stop4h 24m
$281
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Sat 11/14
6:00 am-9:37 pm
1 stop15h 37m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$302
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Thu 12/3
10:21 am-10:33 am
3 stops24h 12m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$317
Showing 1-10 of 21 resultsSorted by cheapest first
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.
PIT-ISP
PHL-ISP
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
USPA-ISP
PIT-ISP
PHL-ISP
No data available for this route at this time. Please check back soon.
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.
Traveling to a place near Islip?
Book flights to Islip if you plan to visit one of these locationsRiverhead
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Find flights from Pennsylvania to Islip, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Explore flights to Islip departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Pennsylvania and Islip flights
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Pennsylvania to Islip flights
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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 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$196 | Average$413 | FlexibilityNo cancel fee | On-time63% |