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Islip

$184+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — ISP
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$184
(Southwest)

Popular in

November

Cheapest in

April

Average price

$178
From Pittsburgh to Islip Long Island
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Southwest deal was found by Cheapflights users on 6/11. 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 10/221:10 pmPIT - ISP
1 stop2h 55mSouthwest
Fri 10/245:35 pmISP - PIT
1 stop6h 00mSouthwest
Deal found 6/11$184
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/287:12 pmPIT - ISP
1 stop21h 03mFrontier
Sun 8/317:33 pmISP - PIT
1 stop23h 58mFrontier
Deal found 6/10$318
This Trip.com deal was found by Cheapflights users on 6/9. 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 6/255:45 amPIT - ISP
1 stop13h 51mMultiple Airlines
Sun 6/298:21 pmISP - PIT
1 stop21h 39mMultiple Airlines
Deal found 6/9$449
This KAYAK deal was found by Cheapflights users on 6/11. 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 7/111:29 pmPIT - ISP
1 stop24h 03mBreeze Airways
Fri 7/1810:36 amISP - PIT
1 stop22h 08mBreeze Airways
Deal found 6/11$551

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 June 12, 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

Wed 10/22

1:10 pm-4:05 pm

1 stop2h 55m

Islip Long Island

Fri 10/24

5:35 pm-11:35 pm

1 stop6h 00m

$184

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Thu 8/28

7:12 pm-4:15 pm

1 stop21h 03m

Islip Long Island

Sun 8/31

7:33 pm-7:31 pm

1 stop23h 58m

$318

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Wed 6/25

5:45 am-7:36 pm

1 stop13h 51m

Islip Long Island

Sun 6/29

8:21 pm-6:00 pm

1 stop21h 39m

$449

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Thu 8/28

9:08 pm-9:56 am

1 stop12h 48m

Islip Long Island

Sun 8/31

7:39 pm-8:46 am

2 stops13h 07m

$535

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Sun 6/29

9:50 am-7:36 pm

1 stop9h 46m

$203

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Wed 6/18

11:05 am-2:05 pm

1 stop3h 00m

$297

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Mon 6/30

1:00 pm-1:15 pm

1 stop24h 15m

$326

PittsburghIslip

PIT - ISP

PITISP

Pittsburgh

Wed 6/18

9:20 pm-9:56 am

3 stops36h 36m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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, January is the cheapest month in which you can book a flight from Pittsburgh to Islip, New York (average of $108). Flying from Pittsburgh to Islip, New York in November is currently the most expensive (average of $213). 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 June 12, 2025.

When flying from Pittsburgh to Islip, New York, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Islip by month

Plan your trip to Islip by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

Temperature in Islip by month

Plan your trip to Islip by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
Read reviews from past customers who have flown Breeze Airways, Southwest and Frontier from Pittsburgh to Islip. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Food

6.7

Comfort

8.2

Entertainment

6.6

Boarding

8.3

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
178 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Food

6.7

Comfort

8.2

Entertainment

6.6

Boarding

8.3

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,287 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Food

6.7

Comfort

8.2

Entertainment

6.6

Boarding

8.3

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Frontier
6.0
Okay
3,295 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Food

6.7

Comfort

8.2

Entertainment

6.6

Boarding

8.3

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

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.

  • What are the cheapest airlines flying 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 $184 on this airline. Additional options worth looking into are Frontier and Breeze Airways, starting at $318 and $535 round-trip.

  • What are the cheapest airlines to fly from Pittsburgh to Islip, New York one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $203. However, be on the lookout for offers from Southwest and Breeze Airways, as they are both options that can get you from Pittsburgh to Islip, New York for a low price.

  • 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, January is the cheapest month in which you can book a flight from Pittsburgh to Islip, New York (average of $108). Flying from Pittsburgh to Islip, New York in November is currently the most expensive (average of $213). 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

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$254Average$333FlexibilityNo cancel feeOn-time63%

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