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Islip

$159+ 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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — ISP
Apr 24 — May 11
Fri 4/24
Fri 5/1
1 adult, Economy
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Cheap 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 March 25, 2026.

This Southwest deal was found by Cheapflights users on 3/22. 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 4/175:00 pm
PIT
-
ISP
1 stop3h 25m
Southwest
Mon 4/204:30 pm
ISP
-
PIT
1 stop3h 30m
Southwest
Deal found 3/22$227
This Southwest deal was found by Cheapflights users on 3/22. 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 5/275:55 am
PIT
-
ISP
2 stops7h 55m
Southwest
Sat 5/306:00 am
ISP
-
PIT
1 stop5h 30m
Southwest
Deal found 3/22$248
This Southwest deal was found by Cheapflights users on 3/20. 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 4/46:00 pm
PIT
-
ISP
1 stop5h 35m
Southwest
Wed 4/84:10 pm
ISP
-
PIT
1 stop6h 00m
Southwest
Deal found 3/20$341
This Trip.com deal was found by Cheapflights users on 3/20. 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.
Sat 4/410:45 am
PIT
-
ISP
2 stops13h 12m
Multiple Airlines
Wed 4/88:00 am
ISP
-
PIT
2 stops25h 38m
Multiple Airlines
Deal found 3/20$408
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 4/39:04 am
PIT
-
ISP
1 stop4h 27m
Multiple Airlines
Mon 4/68:45 pm
ISP
-
PIT
2 stops36h 53m
Multiple Airlines
Deal found 3/20$472
This Southwest deal was found by Cheapflights users on 3/20. 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 3/275:55 pm
PIT
-
ISP
1 stop6h 00m
Southwest
Sun 3/295:40 pm
ISP
-
PIT
1 stop6h 40m
Southwest
Deal found 3/20$509

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 March 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$227
(Southwest)

One-way from

$159
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$199
Provider with most accurate pricing for Pittsburgh-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Pittsburgh-Islip Long Island flights.
Search Deals
From Pittsburgh to Islip Long Island
Search Deals
One-way flight from Pittsburgh to Islip Long Island
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 25, 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

Price

Cheapest round-trip
Quickest round-trip

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Fri 4/17

5:00 pm-8:25 pm

1 stop3h 25m

Islip Long Island

Mon 4/20

4:30 pm-8:00 pm

1 stop3h 30m

$227

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Wed 5/27

10:50 am-1:50 pm

1 stop3h 00m

Islip Long Island

Sat 5/30

12:15 pm-8:15 pm

1 stop8h 00m

$243

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Sat 4/4

6:00 pm-11:35 pm

1 stop5h 35m

Islip Long Island

Wed 4/8

4:10 pm-10:10 pm

1 stop6h 00m

$341

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Sat 4/4

10:45 am-11:57 pm

2 stops13h 12m

Islip Long Island

Wed 4/8

8:00 am-9:38 am

2 stops25h 38m

$408

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Fri 3/27

2:25 pm-11:55 pm

2 stops9h 30m

Islip Long Island

Sun 3/29

5:55 pm-11:50 pm

1 stop5h 55m

$514

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Fri 4/3

5:55 pm-11:55 pm

1 stop6h 00m

Islip Long Island

Mon 4/6

5:15 pm-12:05 am

1 stop6h 50m

$562
Cheapest one-way

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Fri 6/12

7:59 pm-10:03 am

1 stop14h 04m

$159
Quickest one-way

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Fri 6/12

3:50 pm-11:35 pm

2 stops7h 45m

$176

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Fri 6/12

1:19 pm-11:17 am

3 stops21h 58m

$394

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Sat 4/25

3:04 pm-6:46 pm

2 stops27h 42m

$655

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Sorted 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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 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.
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 $43). Flying from Pittsburgh to Islip, New York in February is currently the most expensive (average of $93). 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.

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 March 25, 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.
Southwest
8.0
Very good
4,332 reviews

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,332 reviews
Southwest
8.0
Very good
4,332 reviews

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 3h 25m. Southwest provides one of the quickest options available for as low as $227. 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 $203 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 $43). Flying from Pittsburgh to Islip, New York in February is currently the most expensive (average of $93). 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
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Alternative routes for Pittsburgh to Islip

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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 March 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$203Average$310FlexibilityNo cancel feeOn-time63%

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