$111+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — ISP
Sep 6 — Sep 131
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 August 7, 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 August 7, 2026.
This Southwest deal was found by Cheapflights users on 8/4. 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 9/286:10 am -
1 stop6h 00m
Deal found 8/4![Southwest logo]()
$221
This Southwest deal was found by Cheapflights users on 8/4. 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 9/158:10 am -
2 stops8h 50m
Thu 9/174:05 pm -
1 stop5h 50m
Deal found 8/4![Southwest logo]()
$226
This Southwest deal was found by Cheapflights users on 8/2. 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.
Fri 11/135:50 am -
1 stop5h 55m
Sun 11/154:25 pm -
1 stop8h 00m
Deal found 8/2![Southwest logo]()
$279
This Southwest deal was found by Cheapflights users on 8/4. 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 9/144:10 pm -
1 stop6h 00m
Thu 9/176:10 am -
1 stop6h 00m
Deal found 8/4![Southwest logo]()
$294
This Southwest deal was found by Cheapflights users on 8/3. 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 9/255:35 am -
1 stop4h 05m
Sun 9/2710:30 am -
1 stop12h 45m
Deal found 8/3![Southwest logo]()
$307
This Southwest deal was found by Cheapflights users on 8/6. 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 9/38:40 am -
2 stops7h 45m
Thu 9/104:05 pm -
1 stop5h 50m
Deal found 8/6![Southwest logo]()
$309
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 August 7, 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 August 7, 2026.
This Southwest deal was found by Cheapflights users on 8/4. 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 9/156:10 am -
1 stop6h 00m
Thu 9/176:10 am -
1 stop6h 00m
Deal found 8/4![Southwest logo]()
$221
This Southwest deal was found by Cheapflights users on 8/6. 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 9/284:05 pm -
1 stop5h 50m
Deal found 8/6![Southwest logo]()
$221
This Southwest deal was found by Cheapflights users on 8/2. 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.
Fri 11/135:50 am -
1 stop5h 55m
Sun 11/154:25 pm -
1 stop8h 00m
Deal found 8/2![Southwest logo]()
$279
This Southwest deal was found by Cheapflights users on 8/4. 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 9/144:10 pm -
1 stop6h 00m
Thu 9/176:10 am -
1 stop6h 00m
Deal found 8/4![Southwest logo]()
$294
This Southwest deal was found by Cheapflights users on 8/3. 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 9/255:35 am -
1 stop4h 05m
Sun 9/2710:30 am -
1 stop12h 45m
Deal found 8/3![Southwest logo]()
$307
This Southwest deal was found by Cheapflights users on 8/6. 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 9/38:40 am -
2 stops7h 45m
Thu 9/104:05 pm -
1 stop5h 50m
Deal found 8/6![Southwest logo]()
$309
Last-minute flights from Pittsburgh to IslipDiscover last-minute flight deals from Pittsburgh to Islip. Data last updated August 7, 2026 and is based on user searches.
Discover last-minute flight deals from Pittsburgh to Islip. Data last updated August 7, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/6. 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 9/39:35 am -
1 stop12h 00m
Thu 9/1012:35 pm -
1 stop5h 05m
Deal found 8/6![Southwest logo]()
$309
This Southwest deal was found by Cheapflights users on 8/4. 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 9/144:10 pm -
1 stop6h 00m
Thu 9/176:10 am -
1 stop6h 00m
Deal found 8/4![Southwest logo]()
$294
This Southwest deal was found by Cheapflights users on 8/4. 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 9/158:10 am -
2 stops8h 50m
Thu 9/174:05 pm -
1 stop5h 50m
Deal found 8/4![Southwest logo]()
$226
This Southwest deal was found by Cheapflights users on 8/3. 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 9/255:35 am -
1 stop4h 05m
Sun 9/2710:30 am -
1 stop12h 45m
Deal found 8/3![Southwest logo]()
$307
This Southwest deal was found by Cheapflights users on 8/4. 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 9/286:10 am -
1 stop6h 00m
Deal found 8/4![Southwest logo]()
$221
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 August 7, 2026.
Search for one-way flight options from Pittsburgh to Islip. Find affordable one-way fares based on user searches. Data last updated August 7, 2026.
This Southwest deal was found by Cheapflights users on 8/2. 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 8/275:35 am -
1 stop4h 05m
Deal found 8/2![Southwest logo]()
$111
This Southwest deal was found by Cheapflights users on 8/6. 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 8/226:10 am -
1 stop8h 20m
Deal found 8/6![Southwest logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Fri 8/141:33 pm -
1 stop24h 51m
Deal found 8/3![Multiple Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 8/3. 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 8/142:45 pm -
2 stops7h 20m
Deal found 8/3![Southwest logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Sat 8/226:32 pm -
3 stops23h 34m
Deal found 8/6![Breeze Airways logo]()
$299
This KAYAK deal was found by Cheapflights users on 8/6. 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.
Sat 9/56:32 pm -
2 stops24h 37m
Deal found 8/6![Breeze Airways logo]()
$330
This KAYAK deal was found by Cheapflights users on 8/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/283:37 pm -
1 stop21h 56m
Deal found 8/2![Breeze Airways logo]()
$335
This KAYAK deal was found by Cheapflights users on 8/3. 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.
Tue 10/2710:15 am -
1 stop28h 30m
Deal found 8/3![Breeze Airways logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Fri 8/149:21 am -
3 stops28h 12m
Deal found 8/3![Breeze Airways logo]()
$350
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 August 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $221 (Southwest) |
One-way from | $111 (Southwest) |
Popular in | June |
Cheapest in | September |
Average price | $193 |
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 2,558,603 searches. Data last updated August 7, 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
Tue 9/15
6:10 am-12:10 pm
1 stop6h 00m
Islip Long Island
Thu 9/17
6:10 am-12:10 pm
1 stop6h 00m
$221
Quickest round-trip
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
4:05 pm-9:55 pm
1 stop5h 50m
$221
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Fri 11/13
5:50 am-11:45 am
1 stop5h 55m
Islip Long Island
Sun 11/15
4:25 pm-12:25 am
1 stop8h 00m
$279
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Mon 9/14
4:10 pm-10:10 pm
1 stop6h 00m
Islip Long Island
Thu 9/17
6:10 am-12:10 pm
1 stop6h 00m
$294
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Fri 9/25
5:35 am-9:40 am
1 stop4h 05m
Islip Long Island
Sun 9/27
10:30 am-11:15 pm
1 stop12h 45m
$307
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Thu 9/3
8:40 am-4:25 pm
2 stops7h 45m
Islip Long Island
Thu 9/10
4:05 pm-9:55 pm
1 stop5h 50m
$309
Cheapest one-way
Quickest one-way
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Thu 8/27
5:35 am-9:40 am
1 stop4h 05m
$111
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Sat 8/22
6:10 am-2:30 pm
1 stop8h 20m
$199
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Fri 8/14
1:33 pm-2:24 pm
1 stop24h 51m
$276
PittsburghIslip
PIT Pittsburgh - ISP Islip Long Island
PITISP
Pittsburgh
Fri 8/14
2:45 pm-10:05 pm
2 stops7h 20m
$295
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 August.
| 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 August 7, 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.
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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.
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Book flights to Islip if you plan to visit one of these locationsRiverhead
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Other flights to Islip
Explore flights to Islip departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 7, 2026.
Pittsburgh and Islip flights
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Other flights from Pittsburgh
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Check out other popular destinations found by fellow travelers in 2026
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 2,558,603 searches. Data last updated August 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$196 | Average$424 | FlexibilityNo cancel fee | On-time63% |