$100+ Cheap flights from Pittsburgh to Islip, NY (PIT - 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — ISP
Oct 2 — Oct 91
Round-trip
1 adult, Economy
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Find cheap flights from Pittsburgh 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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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 Pittsburgh to Islip
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Cheapest flights from Pittsburgh to IslipExplore the most affordable flight options available from Pittsburgh to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.
Explore the most affordable flight options available from Pittsburgh to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.
This Southwest deal was found by Cheapflights users on 9/2. 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 10/284:40 pm -
1 stop6h 00m
Sat 10/316:00 am -
1 stop5h 05m
Deal found 9/2![Southwest logo]()
$201
This CheapOair deal was found by Cheapflights users on 9/2. 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.
Thu 9/172:32 pm -
1 stop26h 26m
Mon 9/215:43 pm -
1 stop20h 04m
Deal found 9/2![Frontier logo]()
$286
This CheapOair deal was found by Cheapflights users on 8/31. 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.
Wed 9/162:42 pm -
1 stop26h 16m
Sun 9/205:43 pm -
1 stop20h 04m
Deal found 8/31![Frontier logo]()
$305
This Southwest deal was found by Cheapflights users on 8/29. 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.
Sat 9/266:10 am -
1 stop5h 55m
Mon 9/281:15 pm -
2 stops10h 00m
Deal found 8/29![Southwest logo]()
$341
This Southwest deal was found by Cheapflights users on 9/2. 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 9/175:35 am -
1 stop4h 05m
Mon 9/2112:35 pm -
2 stops8h 35m
Deal found 9/2![Southwest logo]()
$372
This Southwest deal was found by Cheapflights users on 8/29. 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.
Sun 9/136:00 am -
1 stop6h 05m
Thu 9/174:05 pm -
1 stop5h 50m
Deal found 8/29![Southwest logo]()
$389
This Southwest deal was found by Cheapflights users on 8/30. 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 9/136:35 am -
1 stop3h 20m
Tue 9/156:05 am -
1 stop6h 00m
Deal found 8/30![Southwest logo]()
$399
Best flights from Pittsburgh to IslipDiscover carefully curated flight deals from Pittsburgh to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
Discover carefully curated flight deals from Pittsburgh to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
This Southwest deal was found by Cheapflights users on 9/2. 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 10/281:35 pm -
2 stops9h 05m
Sat 10/316:00 am -
2 stops6h 35m
Deal found 9/2![Southwest logo]()
$264
This CheapOair deal was found by Cheapflights users on 9/2. 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.
Sun 9/132:32 pm -
1 stop26h 26m
Mon 9/215:43 pm -
1 stop20h 04m
Deal found 9/2![Frontier logo]()
$406
This Southwest deal was found by Cheapflights users on 8/29. 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.
Sat 9/266:10 am -
1 stop5h 55m
Mon 9/281:15 pm -
2 stops10h 00m
Deal found 8/29![Southwest logo]()
$341
This Southwest deal was found by Cheapflights users on 9/2. 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 9/175:35 am -
1 stop4h 05m
Mon 9/2112:35 pm -
2 stops8h 35m
Deal found 9/2![Southwest logo]()
$372
This Southwest deal was found by Cheapflights users on 8/31. 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 9/162:00 pm -
2 stops7h 10m
Sun 9/206:20 am -
1 stop6h 00m
Deal found 8/31![Southwest logo]()
$394
This Southwest deal was found by Cheapflights users on 8/30. 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 9/136:35 am -
1 stop3h 20m
Tue 9/156:05 am -
2 stops9h 05m
Deal found 8/30![Southwest logo]()
$404
This Southwest deal was found by Cheapflights users on 8/29. 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.
Fri 9/184:10 pm -
1 stop6h 00m
Sun 9/206:20 am -
1 stop6h 00m
Deal found 8/29![Southwest logo]()
$427
This Southwest deal was found by Cheapflights users on 8/30. 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 9/273:15 pm -
2 stops7h 25m
Mon 9/281:15 pm -
2 stops8h 20m
Deal found 8/30![Southwest logo]()
$446
Last-minute flights from Pittsburgh to IslipDiscover last-minute flight deals from Pittsburgh to Islip. Data last updated September 2, 2026 and is based on user searches.
Discover last-minute flight deals from Pittsburgh to Islip. Data last updated September 2, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/29. 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.
Sun 9/136:00 am -
1 stop6h 05m
Thu 9/174:05 pm -
1 stop5h 50m
Deal found 8/29![Southwest logo]()
$389
This Southwest deal was found by Cheapflights users on 8/30. 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 9/136:35 am -
1 stop3h 20m
Tue 9/156:05 am -
1 stop6h 00m
Deal found 8/30![Southwest logo]()
$399
This CheapOair deal was found by Cheapflights users on 8/31. 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.
Wed 9/162:42 pm -
1 stop26h 16m
Sun 9/205:43 pm -
1 stop20h 04m
Deal found 8/31![Frontier logo]()
$305
This CheapOair deal was found by Cheapflights users on 9/2. 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.
Thu 9/172:32 pm -
1 stop26h 26m
Mon 9/215:43 pm -
1 stop20h 04m
Deal found 9/2![Frontier logo]()
$286
This Southwest deal was found by Cheapflights users on 9/2. 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 9/175:35 am -
1 stop4h 05m
Mon 9/2112:35 pm -
2 stops8h 35m
Deal found 9/2![Southwest logo]()
$372
This Southwest deal was found by Cheapflights users on 8/29. 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.
Sat 9/266:10 am -
1 stop5h 55m
Mon 9/281:15 pm -
2 stops10h 00m
Deal found 8/29![Southwest logo]()
$341
This Southwest deal was found by Cheapflights users on 9/2. 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 10/284:40 pm -
1 stop6h 00m
Sat 10/316:00 am -
1 stop5h 05m
Deal found 9/2![Southwest logo]()
$201
One-way flights from Pittsburgh to IslipSearch for one-way flight options from Pittsburgh to Islip. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
Search for one-way flight options from Pittsburgh to Islip. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
This CheapOair deal was found by Cheapflights users on 8/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:42 pm -
1 stop26h 48m
Deal found 8/29![Frontier logo]()
$100
This Southwest deal was found by Cheapflights users on 8/29. 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 10/71:50 pm -
2 stops8h 50m
Deal found 8/29![Southwest logo]()
$124
This CheapOair deal was found by Cheapflights users on 9/2. 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.
Thu 9/172:32 pm -
1 stop26h 26m
Deal found 9/2![Frontier logo]()
$141
This Southwest deal was found by Cheapflights users on 9/1. 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 9/175:35 am -
1 stop4h 05m
Deal found 9/1![Southwest logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 9/137:13 pm -
1 stop13h 46m
Deal found 9/2![Breeze Airways logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 9/1710:26 am -
3 stops24h 02m
Deal found 9/2![Breeze Airways logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 8/29. 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.
Wed 10/72:42 pm -
3 stops28h 23m
Deal found 8/29![Multiple Airlines logo]()
$272
This KAYAK deal was found by Cheapflights users on 9/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:54 pm -
1 stop14h 26m
Deal found 9/1![Breeze Airways logo]()
$300
This KAYAK deal was found by Cheapflights users on 8/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/208:54 pm -
1 stop14h 26m
Deal found 8/31![Breeze Airways logo]()
$330
Find flight deals from Pittsburgh to Islip
Discover tips and strategies to find the most affordable flight options for your journey from Pittsburgh (PIT) to Islip (ISP). 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 September 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $201 (Southwest) |
One-way from | $100 (CheapOair) |
Popular in | June |
Cheapest in | January |
Average price | $213 |
Cheapflights Fare Finder
Customize your flight search to find flights from Pittsburgh 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 September 2, 2026.
Use the filters below to find and compare flights from Pittsburgh 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
Wed 10/28
1:35 pm-10:40 pm
2 stops9h 05m
Islip Long Island
Sat 10/31
6:00 am-12:35 pm
2 stops6h 35m
$264
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Sat 9/26
6:10 am-12:05 pm
1 stop5h 55m
Islip Long Island
Mon 9/28
1:15 pm-11:15 pm
2 stops10h 00m
$341
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Thu 9/17
5:35 am-9:40 am
1 stop4h 05m
Islip Long Island
Mon 9/21
12:35 pm-9:10 pm
2 stops8h 35m
$372
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Wed 9/16
2:00 pm-9:10 pm
2 stops7h 10m
Islip Long Island
Sun 9/20
6:20 am-12:20 pm
1 stop6h 00m
$394
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Sun 9/13
6:35 am-9:55 am
1 stop3h 20m
Islip Long Island
Tue 9/15
6:05 am-3:10 pm
2 stops9h 05m
$404
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Sun 9/13
2:32 pm-4:58 pm
1 stop26h 26m
Islip Long Island
Mon 9/21
5:43 pm-1:47 pm
1 stop20h 04m
$406
Quickest round-trip
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Fri 9/18
4:10 pm-10:10 pm
1 stop6h 00m
Islip Long Island
Sun 9/20
6:20 am-12:20 pm
1 stop6h 00m
$427
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Sun 9/27
3:15 pm-10:40 pm
2 stops7h 25m
Islip Long Island
Mon 9/28
1:15 pm-9:35 pm
2 stops8h 20m
$446
Cheapest one-way
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Wed 10/7
1:50 pm-10:40 pm
2 stops8h 50m
$124
Quickest one-way
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Thu 9/17
5:35 am-9:40 am
1 stop4h 05m
$184
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Pittsburgh to Islip
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pittsburgh to Islip in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Pittsburgh-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Pittsburgh-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Pittsburgh-Islip, New York flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Pittsburgh-Islip, New York flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Pittsburgh-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Pittsburgh to Islip
Have a flexible travel schedule? Discover the best time to fly to Islip from Pittsburgh with our price prediction graph.
PIT-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.
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 September 2, 2026.
Peruse reviews from past customers who have flown with Southwest from Pittsburgh to Islip to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Related info for your journey
Find useful and relevant information for your journey from Pittsburgh 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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Top airline flying from Pittsburgh to Islip
Discover the top airline that operate flights from Pittsburgh 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 September 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$196 | Average$512 | FlexibilityNo cancel fee | On-time63% |