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$215+ Cheap flights from Pittsburgh to Islip, NY (PIT - 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — ISP
Dec 8 — Dec 151
Mon 12/8
Mon 12/15
1 adult, Economy
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Cheap 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 November 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$215
(Southwest)

Popular in

December

Cheapest in

September

Average price

$181
Provider with most accurate pricing for Pittsburgh-Islip Long Island flight deals.
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Provider most trusted by Cheapflights users for Pittsburgh-Islip Long Island flights.
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From Pittsburgh to Islip Long Island
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Highest demand for flights based on searches. 12% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Pittsburgh to Islip

Cheapest flights from Pittsburgh to Islip
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 November 8, 2025.

This Southwest deal was found by Cheapflights users on 11/7. 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 12/126:05 pmPIT - ISP
1 stop5h 45mSouthwest
Thu 12/185:30 pmISP - PIT
1 stop6h 15mSouthwest
Deal found 11/7$215
This Southwest deal was found by Cheapflights users on 11/7. 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.
Mon 12/1510:45 amPIT - ISP
1 stop4h 35mSouthwest
Fri 12/196:00 pmISP - PIT
1 stop6h 05mSouthwest
Deal found 11/7$272
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Fri 11/2111:04 amPIT - ISP
1 stop20h 58mMultiple Airlines
Tue 11/259:09 pmISP - PIT
1 stop11h 10mMultiple Airlines
Deal found 11/6$281
This Southwest deal was found by Cheapflights users on 11/7. 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.
Sat 12/206:20 pmPIT - ISP
1 stop5h 35mSouthwest
Mon 12/225:40 amISP - PIT
1 stop7h 05mSouthwest
Deal found 11/7$311
This Kiwi.com deal was found by Cheapflights users on 11/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/228:16 amPIT - ISP
1 stop25h 53mMultiple Airlines
Wed 11/266:00 amISP - PIT
2 stops39h 47mMultiple Airlines
Deal found 11/7$334

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 November 8, 2025.
Use the filters below to find and compare flights from Pittsburgh to Islip that are best for you.

Fly from

Pittsburgh

Fly to

Islip

Route

Depart

Return

Price

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Fri 12/12

6:05 pm-11:50 pm

1 stop5h 45m

Islip Long Island

Thu 12/18

5:30 pm-11:45 pm

1 stop6h 15m

$215

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Mon 12/15

10:45 am-3:20 pm

1 stop4h 35m

Islip Long Island

Fri 12/19

6:00 pm-12:05 am

1 stop6h 05m

$272

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Fri 11/21

11:04 am-8:02 am

1 stop20h 58m

Islip Long Island

Tue 11/25

9:09 pm-8:19 am

1 stop11h 10m

$281

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Sat 12/20

6:20 pm-11:55 pm

1 stop5h 35m

Islip Long Island

Mon 12/22

5:40 am-12:45 pm

1 stop7h 05m

$311

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Sat 11/22

8:16 am-10:09 am

1 stop25h 53m

Islip Long Island

Wed 11/26

6:00 am-9:47 pm

2 stops39h 47m

$334

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Fri 4/3

5:55 pm-11:55 pm

1 stop6h 00m

Islip Long Island

Sat 4/4

6:00 am-11:30 am

1 stop5h 30m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/7

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Pittsburgh-Islip, New York flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Pittsburgh-Islip, New York flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.
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 Pittsburgh to Islip

What is the cheapest month to book a flight from Pittsburgh to Islip, New York?

Currently, April is the cheapest month in which you can book a flight from Pittsburgh to Islip, New York (average of $42). Flying from Pittsburgh to Islip, New York in January is currently the most expensive (average of $68). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PIT to ISP?

Find hourly flight availability from Pittsburgh to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 8, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 40% on flights from Pittsburgh to Islip, New York by exploring options for tickets at noon.

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 November 8, 2025.
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.
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Pittsburgh to Islip, New York?

    A quick flight from Pittsburgh to Islip, New York can take about 5h 45m. Southwest provides one of the quickest options available for as low as $215. Airlines will cover a distance of 375 mi.

  • What is the cheapest airline to fly from Pittsburgh to Islip, New York round-trip?

    Our cheapest airline available from Pittsburgh to Islip, New York is Southwest. Our recent data shows that you can find tickets from as low as $219 on this airline.

  • Can I find deals for flights from Pittsburgh to Islip that include hotel bookings?

    Yes. In addition to deals on Pittsburgh to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pittsburgh to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pittsburgh to Islip.

  • Can I find deals for business class flights from Pittsburgh to Islip?

    Yes. Cheapflights offers flight deals from Pittsburgh to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pittsburgh to Islip, New York?

    Currently, April is the cheapest month in which you can book a flight from Pittsburgh to Islip, New York (average of $42). Flying from Pittsburgh to Islip, New York in January is currently the most expensive (average of $68). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead
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Alternative routes for Pittsburgh to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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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 2,558,603 searches. Data last updated November 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$219Average$310FlexibilityNo cancel feeOn-time63%

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