What is the cheapest airline that flies from Islip Long Island to Pittsburgh?

Southwest and Frontier are the most popular carriers operating from Islip Long Island to Pittsburgh

What airlines fly to Pittsburgh?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Pittsburgh from Islip, New York according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Pittsburgh. Keep in mind that there are 5 different airlines that fly to Pittsburgh on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Islip Long Island Airport to Pittsburgh Airport?

Prices for flights from Islip Long Island Airport to Pittsburgh Airport are updated daily.

How many operators does momondo search for flights from Islip Long Island Airport to Pittsburgh Airport?

As of July 2026, there is 1 operator available to choose from for flights from Islip Long Island Airport to Pittsburgh Airport.

How old do you have to be to fly from Islip Long Island Airport to Pittsburgh Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Pittsburgh Airport.

What documentation or ID do you need to fly to Pittsburgh Airport?

The required travel and health documents for your Pittsburgh Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Pittsburgh Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$171 Cheap Flights from Islip, New York to Pittsburgh in 2026

Find the cheapest flights from Islip, New York to Pittsburgh

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:05 pm - 9:50 pm

ISP

PIT

5h 45m

1 stop

6:10 am - 10:15 am

PIT

ISP

4h 05m

1 stop

$197Southwest

Mon, Aug 24 - Wed, Aug 26

1:15 pm - 11:10 pm

ISP

PIT

9h 55m

2 stops

6:10 am - 10:15 am

PIT

ISP

4h 05m

1 stop

$202Southwest

Mon, Aug 24 - Wed, Aug 26

6:00 am - 11:45 am

ISP

PIT

5h 45m

1 stop

5:35 am - 9:40 am

PIT

ISP

4h 05m

1 stop

$229Southwest

Thu, Jul 30 - Thu, Aug 6

2:55 pm - 7:40 pm

ISP

PIT

4h 45m

1 stop

3:50 pm - 12:20 am

PIT

ISP

8h 30m

1 stop

$230Southwest

Wed, Jul 22 - Sun, Jul 26

9:10 am - 6:15 pm

ISP

PIT

9h 05m

2 stops

5:35 am - 9:40 am

PIT

ISP

4h 05m

1 stop

$234Southwest

Thu, Jul 30 - Thu, Aug 6

5:50 pm - 11:35 pm

ISP

PIT

5h 45m

1 stop

4:10 pm - 10:05 pm

PIT

ISP

5h 55m

1 stop

$243Southwest

Fri, Jul 31 - Fri, Aug 7

5:50 pm - 11:35 pm

ISP

PIT

5h 45m

1 stop

1:50 pm - 10:05 pm

PIT

ISP

8h 15m

2 stops

$248Southwest

Fri, Jul 31 - Fri, Aug 7

3:05 pm - 12:55 am

ISP

PIT

9h 50m

2 stops

1:50 pm - 10:05 pm

PIT

ISP

8h 15m

2 stops

$253Southwest

Fri, Jul 31 - Fri, Aug 7

1:15 pm - 9:30 pm

ISP

PIT

8h 15m

2 stops

6:30 am - 2:55 pm

PIT

ISP

8h 25m

2 stops

$258Southwest

Mon, Aug 24 - Wed, Aug 26

6:10 am - 12:10 pm

ISP

PIT

6h 00m

1 stop

4:10 pm - 10:05 pm

PIT

ISP

5h 55m

1 stop

$286Southwest

Thu, Aug 13 - Thu, Aug 13

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Southwest flights from Islip, New York to Pittsburgh

Our best Southwest deals on Islip, New York to Pittsburgh flight tickets

Southwest

Aug 24

ISP4:05 pmIslip Long Island

5h 45m

1 stop

PIT9:50 pmPittsburgh

Aug 26

PIT6:10 amPittsburgh

4h 05m

1 stop

ISP10:15 amIslip Long Island

$197

Southwest

Aug 24

ISP1:15 pmIslip Long Island

9h 55m

2 stops

PIT11:10 pmPittsburgh

Aug 26

PIT6:10 amPittsburgh

4h 05m

1 stop

ISP10:15 amIslip Long Island

$202

Southwest

Jul 30

ISP6:00 amIslip Long Island

5h 45m

1 stop

PIT11:45 amPittsburgh

Aug 6

PIT5:35 amPittsburgh

4h 05m

1 stop

ISP9:40 amIslip Long Island

$229

Breeze Airways flights from Islip, New York to Pittsburgh

Our best Breeze Airways deals on Islip, New York to Pittsburgh flight tickets

Breeze Airways

Jul 16

ISP7:49 pmIslip Long Island

16h 59m

1 stop

PIT12:48 pmPittsburgh

Jul 20

PIT9:21 amPittsburgh

25h 55m

1 stop

ISP11:16 amIslip Long Island

$598

Breeze Airways

Jul 16

ISP7:49 pmIslip Long Island

16h 59m

1 stop

PIT12:48 pmPittsburgh

Jul 20

PIT3:37 pmPittsburgh

19h 39m

2 stops

ISP11:16 amIslip Long Island

$624

Breeze Airways

Aug 24

ISP1:00 pmIslip Long Island

22h 21m

3 stops

PIT11:21 amPittsburgh

Aug 26

PIT6:32 pmPittsburgh

24h 37m

2 stops

ISP7:09 pmIslip Long Island

$629

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Mon 8/24

4:05 pm-9:50 pm

1 stop5h 45m

Pittsburgh

Wed 8/26

6:10 am-10:15 am

1 stop4h 05m

$197

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Mon 8/24

1:15 pm-11:10 pm

2 stops9h 55m

Pittsburgh

Wed 8/26

6:10 am-10:15 am

1 stop4h 05m

$202

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 7/30

6:00 am-11:45 am

1 stop5h 45m

Pittsburgh

Thu 8/6

5:35 am-9:40 am

1 stop4h 05m

$229

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Wed 7/22

2:55 pm-7:40 pm

1 stop4h 45m

Pittsburgh

Sun 7/26

3:50 pm-12:20 am

1 stop8h 30m

$230

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 7/30

9:10 am-6:15 pm

2 stops9h 05m

Pittsburgh

Thu 8/6

5:35 am-9:40 am

1 stop4h 05m

$234

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 7/31

5:50 pm-11:35 pm

1 stop5h 45m

Pittsburgh

Fri 8/7

4:10 pm-10:05 pm

1 stop5h 55m

$243

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 7/31

5:50 pm-11:35 pm

1 stop5h 45m

Pittsburgh

Fri 8/7

1:50 pm-10:05 pm

2 stops8h 15m

$248

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 7/31

3:05 pm-12:55 am

2 stops9h 50m

Pittsburgh

Fri 8/7

1:50 pm-10:05 pm

2 stops8h 15m

$253

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Mon 8/24

1:15 pm-9:30 pm

2 stops8h 15m

Pittsburgh

Wed 8/26

6:30 am-2:55 pm

2 stops8h 25m

$258

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 8/13

6:10 am-12:10 pm

1 stop6h 00m

Pittsburgh

Thu 8/13

4:10 pm-10:05 pm

1 stop5h 55m

$286

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Islip, New York to Pittsburgh

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Pittsburgh?

The cheapest day to depart on your flight to Pittsburgh is on a Thursday when prices can be found for as low as $224. This is often the case because there is less demand to fly during this day of the week. Flights from Islip, New York to Pittsburgh on a Sunday will generally be more expensive and average around $278. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Pittsburgh?

Our data shows that the cheapest Islip, New York to Pittsburgh flights are usually those with departure times in the evening. Our users have found flights to Pittsburgh in the evening for as low as $217. Flights to Pittsburgh are more costly in the afternoon, with an average ticket price of $266. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Islip, New York to Pittsburgh

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to Pittsburgh according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Islip, New York to Pittsburgh (ISP to PIT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Pittsburgh

Fastest flight time	4h 45m
Direct flights	None

The fastest flight from Islip, New York to Pittsburgh takes 4h 45m

There are no direct flights from Islip, New York to Pittsburgh. There are no popular flight routes from Islip, New York to Pittsburgh.

Search flight deals

Frequently asked questions about flying from Islip, New York to Pittsburgh

How far is Islip Long Island to Pittsburgh by plane?
There are 356.3 mi between Islip Long Island and Pittsburgh. 4h 45m is a normal flight duration for this route.
When did momondo last update prices for flights from Islip Long Island Airport to Pittsburgh Airport?
Prices for flights from Islip Long Island Airport to Pittsburgh Airport are updated daily.
How many operators does momondo search for flights from Islip Long Island Airport to Pittsburgh Airport?
As of July 2026, there is 1 operator available to choose from for flights from Islip Long Island Airport to Pittsburgh Airport.
How old do you have to be to fly from Islip Long Island Airport to Pittsburgh Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Pittsburgh Airport.
What documentation or ID do you need to fly to Pittsburgh Airport?
The required travel and health documents for your Pittsburgh Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Pittsburgh Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Islip, New York to Pittsburgh?
Based on momondo bookings for flights between Islip, New York and Pittsburgh, the leading airline is Southwest, making up 100% of the total bookings.

Best airlines flying from Islip, New York to Pittsburgh

Compare and see reviews for airlines that fly from Islip, New York to Pittsburgh with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $183	Free Cancellation	Rating 7.9 4,246 reviews		Search Southwest flights

Washington

Monroeville

Wheeling

Canonsburg

Butler

Triadelphia

West Mifflin

New Castle

Moon

Belle Vernon

Coraopolis

Steubenville

Mars

Wexford

Chester

Cadiz

Bridgeport

Edgewood

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Pittsburgh?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Pittsburgh from Islip.

Can I find flights from Islip to Pittsburgh with flexible booking policies on momondo?

momondo does allow users to show only those flights to Pittsburgh from Islip which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Islip to Pittsburgh?

momondo provides multiple filters to help you find the best flight to Pittsburgh from Islip. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Islip to Pittsburgh right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Pittsburgh, momondo offers a useful price alert feature which will track prices for flights to Pittsburgh from Islip and alert you when they change.