$102+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — ISP
Jun 7 — Jun 141
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
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 Pittsburgh to Islip
Cheapest
Best
Last-minute
One-way
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 May 8, 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 May 8, 2026.
This Southwest deal was found by Cheapflights users on 5/3. 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.
Thu 5/282:45 pm
PIT
- ISP
1 stop7h 45m
Southwest
Mon 6/15:10 pm
ISP
- PIT
1 stop6h 10m
Southwest
Deal found 5/3![Southwest logo]()
$223
This Southwest deal was found by Cheapflights users on 5/6. 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 6/49:55 pm
PIT
- ISP
1 stop12h 35m
Southwest
Thu 6/113:05 pm
ISP
- PIT
1 stop4h 25m
Southwest
Deal found 5/6![Southwest logo]()
$238
This Southwest deal was found by Cheapflights users on 5/3. 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.
Mon 8/35:50 pm
PIT
- ISP
1 stop5h 45m
Southwest
Fri 8/74:05 pm
ISP
- PIT
1 stop5h 45m
Southwest
Deal found 5/3![Southwest logo]()
$243
This Southwest deal was found by Cheapflights users on 5/8. 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 6/145:30 am
PIT
- ISP
1 stop11h 10m
Southwest
Fri 6/196:05 pm
ISP
- PIT
1 stop6h 45m
Southwest
Deal found 5/8![Southwest logo]()
$248
This Southwest deal was found by Cheapflights users on 5/6. 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.
Wed 5/2712:50 pm
PIT
- ISP
2 stops9h 20m
Southwest
Sat 5/304:40 pm
ISP
- PIT
1 stop6h 25m
Southwest
Deal found 5/6![Southwest logo]()
$249
This Mytrip deal was found by Cheapflights users on 5/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:10 pm
PIT
- ISP
1 stop14h 53m
Frontier
Thu 8/2010:48 am
ISP
- PIT
1 stop8h 16m
Frontier
Deal found 5/6![Frontier logo]()
$260
This Southwest deal was found by Cheapflights users on 5/7. 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 7/105:50 pm
PIT
- ISP
1 stop5h 45m
Southwest
Mon 7/135:20 am
ISP
- PIT
1 stop10h 40m
Southwest
Deal found 5/7![Southwest logo]()
$315
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 May 8, 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 May 8, 2026.
This Southwest deal was found by Cheapflights users on 5/6. 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 6/49:55 pm
PIT
- ISP
1 stop12h 35m
Southwest
Thu 6/113:05 pm
ISP
- PIT
1 stop4h 25m
Southwest
Deal found 5/6![Southwest logo]()
$238
This Southwest deal was found by Cheapflights users on 5/4. 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.
Thu 6/49:55 pm
PIT
- ISP
1 stop12h 35m
Southwest
Sun 6/76:45 am
ISP
- PIT
1 stop6h 45m
Southwest
Deal found 5/4![Southwest logo]()
$238
This Southwest deal was found by Cheapflights users on 5/3. 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.
Mon 8/35:50 pm
PIT
- ISP
1 stop5h 45m
Southwest
Fri 8/71:15 pm
ISP
- PIT
2 stops9h 55m
Southwest
Deal found 5/3![Southwest logo]()
$248
This Southwest deal was found by Cheapflights users on 5/7. 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 7/103:50 pm
PIT
- ISP
2 stops7h 45m
Southwest
Mon 7/133:05 pm
ISP
- PIT
2 stops9h 45m
Southwest
Deal found 5/7![Southwest logo]()
$340
This Southwest deal was found by Cheapflights users on 5/6. 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.
Tue 5/2610:50 am
PIT
- ISP
1 stop3h 00m
Southwest
Fri 5/294:30 pm
ISP
- PIT
1 stop3h 30m
Southwest
Deal found 5/6![Southwest logo]()
$341
This Southwest deal was found by Cheapflights users on 5/6. 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 8/156:10 am
PIT
- ISP
1 stop5h 55m
Southwest
Wed 8/1912:55 pm
ISP
- PIT
2 stops7h 50m
Southwest
Deal found 5/6![Southwest logo]()
$342
This Southwest deal was found by Cheapflights users on 5/4. 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 5/195:55 am
PIT
- ISP
2 stops7h 55m
Southwest
Sat 5/2312:15 pm
ISP
- PIT
1 stop8h 00m
Southwest
Deal found 5/4![Southwest logo]()
$346
This Southwest deal was found by Cheapflights users on 5/7. 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 5/222:45 pm
PIT
- ISP
2 stops8h 45m
Southwest
Tue 5/269:00 am
ISP
- PIT
2 stops8h 55m
Southwest
Deal found 5/7![Southwest logo]()
$351
This Southwest deal was found by Cheapflights users on 5/8. 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 6/143:55 pm
PIT
- ISP
2 stops7h 40m
Southwest
Fri 6/193:05 pm
ISP
- PIT
2 stops8h 00m
Southwest
Deal found 5/8![Southwest logo]()
$361
Last-minute flights from Pittsburgh to IslipDiscover last-minute flight deals from Pittsburgh to Islip. Data last updated May 8, 2026 and is based on user searches.
Discover last-minute flight deals from Pittsburgh to Islip. Data last updated May 8, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 5/4. 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 5/1910:50 am
PIT
- ISP
1 stop3h 00m
Southwest
Sat 5/2312:15 pm
ISP
- PIT
1 stop8h 00m
Southwest
Deal found 5/4![Southwest logo]()
$341
This Southwest deal was found by Cheapflights users on 5/6. 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.
Wed 5/2712:50 pm
PIT
- ISP
2 stops9h 20m
Southwest
Sat 5/304:40 pm
ISP
- PIT
1 stop6h 25m
Southwest
Deal found 5/6![Southwest logo]()
$249
This Southwest deal was found by Cheapflights users on 5/3. 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.
Thu 5/282:45 pm
PIT
- ISP
1 stop7h 45m
Southwest
Mon 6/15:10 pm
ISP
- PIT
1 stop6h 10m
Southwest
Deal found 5/3![Southwest logo]()
$223
This Southwest deal was found by Cheapflights users on 5/6. 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 6/49:55 pm
PIT
- ISP
1 stop12h 35m
Southwest
Thu 6/113:05 pm
ISP
- PIT
1 stop4h 25m
Southwest
Deal found 5/6![Southwest logo]()
$238
This Southwest deal was found by Cheapflights users on 5/4. 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.
Thu 6/43:50 pm
PIT
- ISP
2 stops7h 45m
Southwest
Sun 6/76:45 am
ISP
- PIT
1 stop6h 45m
Southwest
Deal found 5/4![Southwest logo]()
$325
This Southwest deal was found by Cheapflights users on 5/8. 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 6/145:30 am
PIT
- ISP
1 stop11h 10m
Southwest
Fri 6/196:05 pm
ISP
- PIT
1 stop6h 45m
Southwest
Deal found 5/8![Southwest logo]()
$248
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 May 8, 2026.
Search for one-way flight options from Pittsburgh to Islip. Find affordable one-way fares based on user searches. Data last updated May 8, 2026.
This Southwest deal was found by Cheapflights users on 5/4. 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 6/210:50 am
PIT
- ISP
1 stop3h 00m
Southwest
Deal found 5/4![Southwest logo]()
$102
This Trip.com deal was found by Cheapflights users on 5/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/138:15 pm
PIT
- ISP
1 stop14h 12m
Frontier
Deal found 5/3![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:35 pm
PIT
- ISP
3 stops21h 42m
Breeze Airways
Deal found 5/4![Breeze Airways logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Wed 5/133:54 pm
PIT
- ISP
2 stops27h 19m
Breeze Airways
Deal found 5/3![Breeze Airways logo]()
$246
This KAYAK deal was found by Cheapflights users on 5/7. 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.
Mon 6/89:21 am
PIT
- ISP
1 stop25h 55m
Breeze Airways
Deal found 5/7![Breeze Airways logo]()
$330
This KAYAK deal was found by Cheapflights users on 5/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/78:58 pm
PIT
- ISP
1 stop16h 30m
Breeze Airways
Deal found 5/4![Breeze Airways logo]()
$350
This JetBlue deal was found by Cheapflights users on 5/5. 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 6/257:25 am
PIT
- ISP
1 stop6h 47m
JetBlue
Deal found 5/5![JetBlue logo]()
$377
This KAYAK deal was found by Cheapflights users on 5/7. 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.
Thu 6/48:58 pm
PIT
- ISP
1 stop16h 30m
Breeze Airways
Deal found 5/7![Breeze Airways logo]()
$400
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 May 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $223 (Southwest) |
One-way from | $102 (Southwest) |
Popular in | March |
Cheapest in | September |
Average price | $184 |
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 May 8, 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 - ISP
PITISP
Pittsburgh
Thu 6/4
9:55 pm-10:30 am
1 stop12h 35m
Islip Long Island
Thu 6/11
3:05 pm-7:30 pm
1 stop4h 25m
$238
PittsburghIslip
PIT - ISP
PITISP
Pittsburgh
Thu 6/4
9:55 pm-10:30 am
1 stop12h 35m
Islip Long Island
Sun 6/7
6:45 am-1:30 pm
1 stop6h 45m
$238
PittsburghIslip
PIT - ISP
PITISP
Pittsburgh
Mon 8/3
5:50 pm-11:35 pm
1 stop5h 45m
Islip Long Island
Fri 8/7
1:15 pm-11:10 pm
2 stops9h 55m
$248
PittsburghIslip
PIT - ISP
PITISP
Pittsburgh
Fri 7/10
3:50 pm-11:35 pm
2 stops7h 45m
Islip Long Island
Mon 7/13
3:05 pm-12:50 am
2 stops9h 45m
$340
Quickest round-trip
PittsburghIslip
PIT - ISP
PITISP
Pittsburgh
Tue 5/26
10:50 am-1:50 pm
1 stop3h 00m
Islip Long Island
Fri 5/29
4:30 pm-8:00 pm
1 stop3h 30m
$341
PittsburghIslip
PIT - ISP
PITISP
Pittsburgh
Sat 8/15
6:10 am-12:05 pm
1 stop5h 55m
Islip Long Island
Wed 8/19
12:55 pm-8:45 pm
2 stops7h 50m
$342
PittsburghIslip
PIT - ISP
PITISP
Pittsburgh
Tue 5/19
5:55 am-1:50 pm
2 stops7h 55m
Islip Long Island
Sat 5/23
12:15 pm-8:15 pm
1 stop8h 00m
$346
PittsburghIslip
PIT - ISP
PITISP
Pittsburgh
Fri 5/22
2:45 pm-11:30 pm
2 stops8h 45m
Islip Long Island
Tue 5/26
9:00 am-5:55 pm
2 stops8h 55m
$351
PittsburghIslip
PIT - ISP
PITISP
Pittsburgh
Sun 6/14
3:55 pm-11:35 pm
2 stops7h 40m
Islip Long Island
Fri 6/19
3:05 pm-11:05 pm
2 stops8h 00m
$361
Cheapest one-way
Quickest one-way
PittsburghIslip
PIT - ISP
PITISP
Pittsburgh
Tue 6/2
10:50 am-1:50 pm
1 stop3h 00m
$102
Showing 1-10 of 18 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 May.
| 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 May 8, 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.
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
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
Complete your trip
Flights by cabin class
Islip flight routes
Other flight options
Other flights from Pittsburgh
Popular flights
Alternative routes for Pittsburgh to Islip
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Islip by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Pittsburgh to Islip by cabin class
Find flights from Pittsburgh to Islip, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 May 8, 2026.
Pittsburgh and Islip flights
Browse other Pittsburgh and Islip flight options. Last updated on May 8, 2026.
Other flights from Pittsburgh
Browse through other flights departing from Pittsburgh. Flights are based on user searches made on Cheapflights and were last updated on May 8, 2026.
Popular flight searches
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 May 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$203 | Average$310 | FlexibilityNo cancel fee | On-time63% |