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

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

What airlines fly to Pittsburgh?

United Airlines, Spirit Airlines and American Airlines are the top three most popular airlines that fly to Pittsburgh from Islip according to our data. United Airlines is the first choice among our users, with 27% of people opting to fly with this airline when traveling to Pittsburgh. Keep in mind that there are 6 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 September 2025, 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.

$190 Cheap Flights from Islip to Pittsburgh in 2025/26

Q: What is the typical price of a round-trip flight between Islip and Pittsburgh?

Prices are currently low for flights on this route. Typical prices usually range from $291 to $505. The lowest price recently found on this route was $190.

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Find the cheapest flights from Islip to Pittsburgh

Round-trip

One-way

Last minute

Cheap round-trip flights

6:05 am - 4:00 pmISP-PIT

9h 55m1 stop

5:45 am - 12:15 pmPIT-ISP

6h 30m1 stop

$190Southwest

Find Deal

Sat, Nov 1 - Mon, Nov 3

3:20 pm - 11:05 pmISP-PIT

7h 45m1 stop

6:00 am - 12:10 pmPIT-ISP

6h 10m1 stop

$214Southwest

Find Deal

Fri, Oct 24 - Sun, Oct 26

5:35 pm - 12:15 amISP-PIT

6h 40m2 stops

6:00 am - 12:10 pmPIT-ISP

6h 10m1 stop

$219Southwest

Find Deal

Fri, Oct 24 - Sun, Oct 26

11:55 am - 8:30 pmISP-PIT

8h 35m2 stops

5:45 am - 12:15 pmPIT-ISP

6h 30m1 stop

$276Southwest

Find Deal

Sat, Nov 1 - Mon, Nov 3

11:40 am - 9:21 pmISP-PIT

9h 41m1 stop

10:35 am - 4:06 pmPIT-ISP

5h 31m1 stop

$281

Find Deal

Mon, Sep 29 - Fri, Oct 3

2:19 pm - 5:46 pmISP-PIT

27h 27m2 stops

8:32 pm - 9:58 amPIT-ISP

13h 26m1 stop

$302

Find Deal

Thu, Oct 16 - Mon, Oct 27

5:35 pm - 11:35 pmISP-PIT

6h 00m1 stop

5:00 am - 2:35 pmPIT-ISP

9h 35m1 stop

$307Southwest

Find Deal

Thu, Oct 16 - Mon, Oct 27

8:47 pm - 12:09 pmISP-PIT

39h 22m3 stops

5:46 pm - 6:28 pmPIT-ISP

24h 42m2 stops

$697Breeze Airways

Find Deal

Fri, Oct 24 - Sun, Oct 26

8:47 pm - 12:09 pmISP-PIT

39h 22m3 stops

5:46 pm - 8:07 pmPIT-ISP

26h 21m3 stops

$842Breeze Airways

Find Deal

Fri, Oct 24 - Sun, Oct 26

11:40 am - 7:10 pmISP-PIT

31h 30m3 stops

3:48 pm - 9:58 amPIT-ISP

18h 10m2 stops

$895Breeze Airways

Find Deal

Thu, Oct 16 - Mon, Oct 27

Southwest flights from Islip to Pittsburgh

Our best Southwest deals on Islip to Pittsburgh flight tickets

Southwest

Nov 1

ISP6:05 amIslip Long Island

9h 55m

1 stop

PIT4:00 pmPittsburgh

Nov 3

PIT5:45 amPittsburgh

6h 30m

1 stop

ISP12:15 pmIslip Long Island

$190

Find similar

Southwest

Oct 24

ISP3:20 pmIslip Long Island

7h 45m

1 stop

PIT11:05 pmPittsburgh

Oct 26

PIT6:00 amPittsburgh

6h 10m

1 stop

ISP12:10 pmIslip Long Island

$214

Find similar

Southwest

Oct 24

ISP5:35 pmIslip Long Island

6h 40m

2 stops

PIT12:15 amPittsburgh

Oct 26

PIT6:00 amPittsburgh

6h 10m

1 stop

ISP12:10 pmIslip Long Island

$219

Find similar

Breeze Airways flights from Islip to Pittsburgh

Our best Breeze Airways deals on Islip to Pittsburgh flight tickets

Breeze Airways

Oct 24

ISP8:47 pmIslip Long Island

39h 22m

3 stops

PIT12:09 pmPittsburgh

Oct 26

PIT5:46 pmPittsburgh

24h 42m

2 stops

ISP6:28 pmIslip Long Island

$697

Find similar

Breeze Airways

Oct 24

ISP8:47 pmIslip Long Island

39h 22m

3 stops

PIT12:09 pmPittsburgh

Oct 26

PIT5:46 pmPittsburgh

26h 21m

3 stops

ISP8:07 pmIslip Long Island

$842

Find similar

Breeze Airways

Oct 16

ISP11:40 amIslip Long Island

31h 30m

3 stops

PIT7:10 pmPittsburgh

Oct 27

PIT3:48 pmPittsburgh

18h 10m

2 stops

ISP9:58 amIslip Long Island

$895

Find similar

Fly from

Fly to

Route

Depart

Return

Price

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Sat 11/1

6:05 am-4:00 pm

1 stop9h 55m

Pittsburgh

Mon 11/3

5:45 am-12:15 pm

1 stop6h 30m

$190

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 10/24

3:20 pm-11:05 pm

1 stop7h 45m

Pittsburgh

Sun 10/26

6:00 am-12:10 pm

1 stop6h 10m

$214

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 10/24

5:35 pm-12:15 am

2 stops6h 40m

Pittsburgh

Sun 10/26

6:00 am-12:10 pm

1 stop6h 10m

$219

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Sat 11/1

11:55 am-8:30 pm

2 stops8h 35m

Pittsburgh

Mon 11/3

5:45 am-12:15 pm

1 stop6h 30m

$276

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Mon 9/29

11:40 am-9:21 pm

1 stop9h 41m

Pittsburgh

Fri 10/3

10:35 am-4:06 pm

1 stop5h 31m

$281

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 10/16

2:19 pm-5:46 pm

2 stops27h 27m

Pittsburgh

Mon 10/27

8:32 pm-9:58 am

1 stop13h 26m

$302

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 10/16

5:35 pm-11:35 pm

1 stop6h 00m

Pittsburgh

Mon 10/27

5:00 am-2:35 pm

1 stop9h 35m

$307

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 10/24

8:47 pm-12:09 pm

3 stops39h 22m

Pittsburgh

Sun 10/26

5:46 pm-6:28 pm

2 stops24h 42m

$697

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 10/24

8:47 pm-12:09 pm

3 stops39h 22m

Pittsburgh

Sun 10/26

5:46 pm-8:07 pm

3 stops26h 21m

$842

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 10/16

11:40 am-7:10 pm

3 stops31h 30m

Pittsburgh

Mon 10/27

3:48 pm-9:58 am

2 stops18h 10m

$895

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 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 typical price of a round-trip flight between Islip and Pittsburgh?

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 $198. This is often the case because there is less demand to fly during this day of the week. Flights from Islip to Pittsburgh on a Sunday will generally be more expensive and average around $244. 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 to Pittsburgh flights are usually those with departure times in the afternoon. Our users have found flights to Pittsburgh in the afternoon for as low as $186. Flights to Pittsburgh are more costly at noon, with an average ticket price of $230. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Islip to Pittsburgh

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

Estimated round-trip price

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

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

Direct flights	None

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

Search flight deals

How far is Islip Long Island to Pittsburgh by plane?
There are 356.3 mi between Islip Long Island and Pittsburgh. 6h 00m 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 September 2025, 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 to Pittsburgh?
Based on momondo bookings for flights between Islip and Pittsburgh, the leading airline is Southwest, making up 100% of the total bookings.

Best airlines flying from Islip to Pittsburgh

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

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $183	Free Cancellation	Rating 8.0 4,245 reviews		Search Southwest flights

Washington

Monroeville

Wheeling

Butler

Canonsburg

West Mifflin

New Castle

Triadelphia

Belle Vernon

Steubenville

Moon

Coraopolis

Mars

Wexford

Freeport

Cadiz

Chester

Bridgeport

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.