$222+ Cheap flights from Islip, NY to Pittsburgh (ISP - PIT)
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 12/19. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PIT
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Islip to Pittsburgh 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 Islip to Pittsburgh
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Cheapest flights from Islip to PittsburghExplore the most affordable flight options available from Islip to Pittsburgh. 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 Islip to Pittsburgh. 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 10/30. 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.
Sat 12/196:00 pm -
1 stop7h 20m
Mon 12/219:20 pm -
1 stop11h 25m
Deal found 10/30![Southwest logo]()
$222
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.
Sat 12/196:00 pm -
1 stop7h 20m
Sun 12/205:45 pm -
1 stop6h 05m
Deal found 10/30![Southwest logo]()
$236
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:45 pm -
1 stop23h 50m
Mon 11/168:54 pm -
1 stop14h 26m
Deal found 10/28![Breeze Airways logo]()
$380
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:57 am -
2 stops32h 10m
Mon 11/168:54 pm -
1 stop14h 26m
Deal found 10/28![Multiple Airlines logo]()
$384
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 11/94:25 pm -
1 stop8h 05m
Fri 11/135:50 pm -
1 stop5h 45m
Deal found 10/25![Southwest logo]()
$391
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.
Mon 11/165:05 pm -
1 stop6h 15m
Fri 11/207:00 am -
2 stops8h 35m
Deal found 10/28![Southwest logo]()
$414
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.
Thu 11/1212:25 pm -
2 stops9h 30m
Fri 11/135:00 am -
2 stops10h 35m
Deal found 10/28![Southwest logo]()
$429
Best flights from Islip to PittsburghDiscover carefully curated flight deals from Islip to Pittsburgh 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 Islip to Pittsburgh 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 10/30. 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.
Sat 12/196:00 pm -
1 stop7h 20m
Mon 12/214:10 pm -
2 stops7h 40m
Deal found 10/30![Southwest logo]()
$222
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.
Sat 12/196:00 pm -
1 stop7h 20m
Sun 12/205:45 pm -
1 stop6h 05m
Deal found 10/30![Southwest logo]()
$236
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.
Fri 1/225:45 am -
2 stops7h 15m
Sun 1/246:00 am -
1 stop5h 50m
Deal found 10/28![Southwest logo]()
$257
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.
Thu 11/125:40 pm -
1 stop6h 15m
Fri 11/135:50 pm -
1 stop5h 45m
Deal found 10/28![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 11/91:35 pm -
2 stops8h 20m
Fri 11/135:50 pm -
1 stop5h 45m
Deal found 10/25![Southwest logo]()
$396
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.
Mon 11/165:05 pm -
1 stop6h 15m
Fri 11/207:00 am -
2 stops8h 35m
Deal found 10/28![Southwest logo]()
$414
Last-minute flights from Islip to PittsburghDiscover last-minute flight deals from Islip to Pittsburgh. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Islip to Pittsburgh. Data last updated October 30, 2026 and is based on user searches.
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.
Sat 11/73:43 pm -
1 stop18h 47m
Sun 11/87:13 pm -
1 stop13h 46m
Deal found 10/25![Breeze Airways logo]()
$523
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 11/94:25 pm -
1 stop8h 05m
Fri 11/135:50 pm -
1 stop5h 45m
Deal found 10/25![Southwest logo]()
$391
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:45 pm -
1 stop23h 50m
Mon 11/168:54 pm -
1 stop14h 26m
Deal found 10/28![Breeze Airways logo]()
$380
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:57 am -
2 stops32h 10m
Mon 11/168:54 pm -
1 stop14h 26m
Deal found 10/28![Multiple Airlines logo]()
$384
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.
Thu 11/1212:25 pm -
2 stops9h 30m
Fri 11/135:00 am -
2 stops10h 35m
Deal found 10/28![Southwest logo]()
$429
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.
Thu 11/121:35 pm -
2 stops8h 20m
Mon 11/1612:30 pm -
2 stops9h 15m
Deal found 10/28![Southwest logo]()
$449
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.
Mon 11/165:05 pm -
1 stop6h 15m
Fri 11/207:00 am -
2 stops8h 35m
Deal found 10/28![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 11/244:40 pm -
1 stop25h 24m
Tue 12/110:15 am -
1 stop28h 30m
Deal found 10/26![Multiple Airlines logo]()
$439
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 11/246:05 am -
2 stops7h 30m
Tue 12/11:25 pm -
2 stops8h 20m
Deal found 10/26![Southwest logo]()
$519
One-way flights from Islip to PittsburghSearch for one-way flight options from Islip to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Islip to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
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.
Mon 11/211:13 am -
3 stops25h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Breeze Airways logo]()
$337
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/93:02 pm -
1 stop5h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Breeze Airways logo]()
$374
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.
Mon 11/212:25 pm -
2 stops8h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$397
Find flight deals from Islip to Pittsburgh
Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Pittsburgh (PIT). 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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $222 (Southwest) |
Popular in | October |
Cheapest in | February |
Average price | $338 |
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to Pittsburgh 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 Islip to Pittsburgh that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
IslipPittsburgh
ISP Islip Long Island - PIT Pittsburgh
ISPPIT
Islip Long Island
Sat 12/19
6:00 pm-1:20 am
1 stop7h 20m
Pittsburgh
Mon 12/21
4:10 pm-11:50 pm
2 stops7h 40m
$222
IslipPittsburgh
ISP Islip Long Island - PIT Pittsburgh
ISPPIT
Islip Long Island
Sat 12/19
6:00 pm-1:20 am
1 stop7h 20m
Pittsburgh
Sun 12/20
5:45 pm-11:50 pm
1 stop6h 05m
$236
IslipPittsburgh
ISP Islip Long Island - PIT Pittsburgh
ISPPIT
Islip Long Island
Fri 1/22
5:45 am-1:00 pm
2 stops7h 15m
Pittsburgh
Sun 1/24
6:00 am-11:50 am
1 stop5h 50m
$257
IslipPittsburgh
ISP Islip Long Island - PIT Pittsburgh
ISPPIT
Islip Long Island
Thu 11/12
5:40 pm-11:55 pm
1 stop6h 15m
Pittsburgh
Fri 11/13
5:50 pm-11:35 pm
1 stop5h 45m
$391
IslipPittsburgh
ISP Islip Long Island - PIT Pittsburgh
ISPPIT
Islip Long Island
Mon 11/9
1:35 pm-9:55 pm
2 stops8h 20m
Pittsburgh
Fri 11/13
5:50 pm-11:35 pm
1 stop5h 45m
$396
Quickest round-trip
IslipPittsburgh
ISP Islip Long Island - PIT Pittsburgh
ISPPIT
Islip Long Island
Mon 11/2
12:25 pm-9:15 pm
2 stops8h 50m
Pittsburgh
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$397
IslipPittsburgh
ISP Islip Long Island - PIT Pittsburgh
ISPPIT
Islip Long Island
Mon 11/16
5:05 pm-11:20 pm
1 stop6h 15m
Pittsburgh
Fri 11/20
7:00 am-3:35 pm
2 stops8h 35m
$414
IslipPittsburgh
ISP Islip Long Island - PIT Pittsburgh
ISPPIT
Islip Long Island
Mon 11/9
11:13 am-1:01 pm
3 stops25h 48m
Pittsburgh
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$431
Sorted by cheapest first
Compare providers for flights from Islip to Pittsburgh
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 Islip to Pittsburgh in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Islip, New York-Pittsburgh flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Pittsburgh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Pittsburgh flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Islip, New York-Pittsburgh 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 Islip, New York-Pittsburgh 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 Islip to Pittsburgh
Have a flexible travel schedule? Discover the best time to fly to Pittsburgh from Islip with our price prediction graph.
ISP-PIT
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 Pittsburgh
Get insights into the airlines that provide service to Pittsburgh. 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 Pittsburgh. Reviews last updated October 30, 2026.
Read through reviews of airlines operating flights from Islip to Pittsburgh, such as Southwest. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.4
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.4
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Related info for your journey
Find useful and relevant information for your journey from Islip to Pittsburgh. 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 Pittsburgh?
Book flights to Pittsburgh if you plan to visit one of these locationsMonroeville
Washington
Chester
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Wexford
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Islip and Pittsburgh flights
Browse other Islip and Pittsburgh flight options. Last updated on October 30, 2026.
Other flights from Islip
Browse through other flights departing from Islip. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Other flights to Pittsburgh
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Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Islip to Pittsburgh
Discover the top airline that operate flights from Islip to Pittsburgh. 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$240 | Average$325 | FlexibilityNo cancel fee | On-time63% |