HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Pittsburgh

$92+ Cheap flights from Islip, NY to Pittsburgh (ISP - PIT)

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 12/21. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PIT
Jan 4 — Jan 111
Sun 1/4
Sun 1/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

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 Islip to Pittsburgh

Cheapest flights from Islip to Pittsburgh
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 December 5, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/2. 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 12/184:40 pmISP - PIT
1 stop17h 18mMultiple Airlines
Mon 12/222:45 pmPIT - ISP
1 stop24h 25mMultiple Airlines
Deal found 12/2$270
This Kiwi.com deal was found by Cheapflights users on 12/4. 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.
Fri 12/128:47 pmISP - PIT
1 stop10h 59mMultiple Airlines
Sun 12/147:51 pmPIT - ISP
1 stop28h 08mMultiple Airlines
Deal found 12/4$377
This Kiwi.com deal was found by Cheapflights users on 12/3. 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 12/1012:37 pmISP - PIT
2 stops12h 04mMultiple Airlines
Thu 12/117:51 pmPIT - ISP
1 stop28h 08mMultiple Airlines
Deal found 12/3$392
This Kiwi.com deal was found by Cheapflights users on 12/4. 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.
Fri 12/192:25 pmISP - PIT
1 stop4h 50mMultiple Airlines
Tue 12/2310:53 amPIT - ISP
2 stops29h 44mMultiple Airlines
Deal found 12/4$415
This Southwest deal was found by Cheapflights users on 12/3. 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.
Wed 12/106:15 amISP - PIT
1 stop7h 35mSouthwest
Thu 12/114:05 pmPIT - ISP
1 stop6h 00mSouthwest
Deal found 12/3$489
This Southwest deal was found by Cheapflights users on 12/2. 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 12/56:15 amISP - PIT
1 stop7h 35mSouthwest
Fri 12/54:05 pmPIT - ISP
1 stop6h 00mSouthwest
Deal found 12/2$643

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 December 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$270
(Kiwi.com)

One-way from

$92
(Mytrip)

Popular in

January

Cheapest in

February

Average price

$451
Provider with most accurate pricing for Islip Long Island-Pittsburgh flight deals.
Search Deals
Provider most trusted by Cheapflights users for Islip Long Island-Pittsburgh flights.
Search Deals
From Islip Long Island to Pittsburgh
Search Deals
One-way flight from Islip Long Island to Pittsburgh
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 2,558,603 searches. Data last updated December 5, 2025.
Use the filters below to find and compare flights from Islip to Pittsburgh that are best for you.

Fly from

Islip

Fly to

Pittsburgh

Route

Depart

Return

Price

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 1/16

2:01 pm-7:54 pm

1 stop5h 53m

Pittsburgh

Mon 1/19

8:43 pm-11:59 am

1 stop15h 16m

$270

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 12/18

4:40 pm-9:58 am

1 stop17h 18m

Pittsburgh

Mon 12/22

2:45 pm-3:10 pm

1 stop24h 25m

$270

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 1/16

5:55 am-12:50 pm

2 stops6h 55m

Pittsburgh

Mon 1/19

6:00 am-11:55 am

1 stop5h 55m

$299

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Sun 1/11

5:55 am-11:50 am

1 stop5h 55m

Pittsburgh

Sun 1/11

4:10 pm-10:20 pm

1 stop6h 10m

$306

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Sat 1/3

5:55 pm-11:40 pm

1 stop5h 45m

Pittsburgh

Sat 1/10

3:55 pm-9:50 pm

1 stop5h 55m

$308

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 12/19

2:25 pm-7:15 pm

1 stop4h 50m

Pittsburgh

Tue 12/23

10:53 am-4:37 pm

2 stops29h 44m

$415

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Sun 12/21

2:04 pm-5:09 pm

1 stop27h 05m

$92

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 12/25

10:38 am-4:51 pm

1 stop6h 13m

$165

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Mon 12/15

2:25 pm-7:15 pm

1 stop4h 50m

$168

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Sun 12/21

2:19 pm-9:58 am

2 stops19h 39m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 15 results
1
2

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 December.
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 Islip, New York-Pittsburgh flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Islip, New York-Pittsburgh flight deals on Cheapflights vs. eDreams >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 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 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.
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 Islip to Pittsburgh

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

Currently, May is the cheapest month in which you can book a flight from Islip, New York to Pittsburgh (average of $31). Flying from Islip, New York to Pittsburgh in December is currently the most expensive (average of $65). 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 ISP to PIT?

Find hourly flight availability from Islip to Pittsburgh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 5, 2025.

It’s typically best to fly out from Islip, New York to Pittsburgh in the afternoon. Doing so could potentially save you 38% on the flight price compared to flying at noon, which is usually more expensive.

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 December 5, 2025.
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.
Southwest
8.0
Very good
4,250 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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.

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

    Airlines like Southwest fly from Islip, New York to Pittsburgh in about 6h 55m. The time it takes to get you to your destination can typically vary by up to . The distance between Islip, New York and Pittsburgh is about 375 mi.

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

    Southwest, at $183, was found to be the cheapest airline from Islip, New York to Pittsburgh.. Users have found that Southwest is 48% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip to Pittsburgh 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 Islip, New York to Pittsburgh?

    Currently, May is the cheapest month in which you can book a flight from Islip, New York to Pittsburgh (average of $31). Flying from Islip, New York to Pittsburgh in December is currently the most expensive (average of $65). 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 Pittsburgh?

Book flights to Pittsburgh if you plan to visit one of these locations
Mars
Steubenville
Monroeville
Washington
Wexford
Belle Vernon

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 for Islip to Pittsburgh

See prices for flight routes from nearby airports that may be better suited for you.
Buffalo to John F Kennedy Intl flights
John F Kennedy Intl to Reagan-National flights
John F Kennedy Intl to Dulles Intl flights
LaGuardia to Reagan-National flights
Newark to Pittsburgh flights
LaGuardia to Pittsburgh flights
Newark to Dulles Intl flights
John F Kennedy Intl to Pittsburgh flights
Buffalo to LaGuardia flights
Newark to Reagan-National flights
LaGuardia to Dulles Intl flights
Rochester to John F Kennedy Intl flights
Buffalo to Newark flights
Rochester to LaGuardia flights
Syracuse to John F Kennedy Intl flights
Rochester to Newark flights
Syracuse to Newark flights
Rochester to Dulles Intl flights
Syracuse to LaGuardia flights
Syracuse to Dulles Intl flights
Albany to Reagan-National flights
Buffalo to Dulles Intl flights
Albany to Dulles Intl flights
John F Kennedy Intl to Philadelphia flights
Rochester to Reagan-National flights
Newark to Philadelphia flights
Syracuse to Reagan-National flights
Rochester to Philadelphia flights
LaGuardia to Philadelphia flights
Stewart to Pittsburgh flights
Buffalo to Reagan-National flights
White Plains to Dulles Intl flights
Buffalo to Philadelphia flights
White Plains to Pittsburgh flights
White Plains to Reagan-National flights
Syracuse to Philadelphia flights
Ithaca to Reagan-National flights
Albany to John F Kennedy Intl flights
Albany to Philadelphia flights
Albany to LaGuardia flights
Ithaca to Dulles Intl flights
Ithaca to John F Kennedy Intl flights
Ithaca to LaGuardia flights
Ithaca to Newark flights
LaGuardia to Harrisburg flights
Newark to Harrisburg flights
Albany to Pittsburgh flights
Syracuse to Pittsburgh flights

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 2,558,603 searches. Data last updated December 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$183Average$453FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Cookie settings©2025 Cheapflights