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

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

What airlines fly to Pittsburgh?

United Airlines, American Airlines and Delta 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 30% 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 November 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.

$142 Cheap Flights from Islip to Pittsburgh in 2025/26

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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.

10:02 am - 10:09 amISP-PIT

24h 07m1 stop

5:18 pm - 7:34 pmPIT-ISP

26h 16m2 stops

$224Frontier

Find Deal

Thu, Nov 27 - Mon, Dec 1

10:02 am - 2:42 pmISP-PIT

28h 40m2 stops

5:18 pm - 7:34 pmPIT-ISP

26h 16m2 stops

$357Frontier

Find Deal

Thu, Nov 27 - Mon, Dec 1

10:02 am - 10:09 amISP-PIT

24h 07m1 stop

8:32 pm - 10:28 amPIT-ISP

13h 56m1 stop

$496Multiple Airlines

Find Deal

Thu, Nov 27 - Mon, Dec 1

11:03 am - 8:19 amISP-PIT

21h 16m1 stop

8:01 am - 8:02 amPIT-ISP

24h 01m1 stop

$535Multiple Airlines

Find Deal

Wed, Nov 26 - Sun, Nov 30

11:03 am - 7:06 amISP-PIT

20h 03m2 stops

8:01 am - 8:02 amPIT-ISP

24h 01m1 stop

$550Multiple Airlines

Find Deal

Wed, Nov 26 - Sun, Nov 30

7:36 pm - 7:52 pmISP-PIT

24h 16m3 stops

3:53 pm - 10:28 amPIT-ISP

18h 35m2 stops

$1,050Breeze Airways

Find Deal

Thu, Nov 27 - Mon, Dec 1

8:45 pm - 12:09 pmISP-PIT

15h 24m2 stops

7:51 pm - 8:07 pmPIT-ISP

24h 16m2 stops

$1,138Breeze Airways

Find Deal

Wed, Nov 26 - Sun, Nov 30

8:45 pm - 12:09 pmISP-PIT

15h 24m2 stops

5:46 pm - 8:07 pmPIT-ISP

26h 21m3 stops

$1,374Breeze Airways

Find Deal

Wed, Nov 26 - Sun, Nov 30

Breeze Airways flights from Islip, New York to Pittsburgh

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

Breeze Airways

Nov 16

ISP11:40 amIslip Long Island

31h 35m

3 stops

PIT7:15 pmPittsburgh

Nov 18

PIT9:28 pmPittsburgh

22h 13m

2 stops

ISP7:41 pmIslip Long Island

$1,019

Find similar

Breeze Airways

Nov 27

ISP7:36 pmIslip Long Island

24h 16m

3 stops

PIT7:52 pmPittsburgh

Dec 1

PIT3:53 pmPittsburgh

18h 35m

2 stops

ISP10:28 amIslip Long Island

$1,050

Find similar

Breeze Airways

Nov 26

ISP8:45 pmIslip Long Island

15h 24m

2 stops

PIT12:09 pmPittsburgh

Nov 30

PIT7:51 pmPittsburgh

24h 16m

2 stops

ISP8:07 pmIslip Long Island

$1,138

Find similar

Frontier flights from Islip, New York to Pittsburgh

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

Frontier

Nov 27

ISP10:02 amIslip Long Island

24h 07m

1 stop

PIT10:09 amPittsburgh

Dec 1

PIT5:18 pmPittsburgh

26h 16m

2 stops

ISP7:34 pmIslip Long Island

$224

Find similar

Frontier

Nov 27

ISP10:02 amIslip Long Island

28h 40m

2 stops

PIT2:42 pmPittsburgh

Dec 1

PIT5:18 pmPittsburgh

26h 16m

2 stops

ISP7:34 pmIslip Long Island

$357

Find similar

Frontier

Nov 15

ISP4:58 pmIslip Long Island

24h 52m

1 stop

PIT5:50 pmPittsburgh

Nov 17

PIT5:30 pmPittsburgh

24h 12m

2 stops

ISP5:42 pmIslip Long Island

$429

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Islip, New York to Pittsburgh that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 11/27

10:02 am-10:09 am

1 stop24h 07m

Pittsburgh

Mon 12/1

5:18 pm-7:34 pm

2 stops26h 16m

$224

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 11/27

10:02 am-2:42 pm

2 stops28h 40m

Pittsburgh

Mon 12/1

5:18 pm-7:34 pm

2 stops26h 16m

$357

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 11/27

10:02 am-10:09 am

1 stop24h 07m

Pittsburgh

Mon 12/1

8:32 pm-10:28 am

1 stop13h 56m

$496

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Wed 11/26

11:03 am-8:19 am

1 stop21h 16m

Pittsburgh

Sun 11/30

8:01 am-8:02 am

1 stop24h 01m

$535

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Wed 11/26

11:03 am-7:06 am

2 stops20h 03m

Pittsburgh

Sun 11/30

8:01 am-8:02 am

1 stop24h 01m

$550

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Thu 11/27

7:36 pm-7:52 pm

3 stops24h 16m

Pittsburgh

Mon 12/1

3:53 pm-10:28 am

2 stops18h 35m

$1,050

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Wed 11/26

8:45 pm-12:09 pm

2 stops15h 24m

Pittsburgh

Sun 11/30

7:51 pm-8:07 pm

2 stops24h 16m

$1,138

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Wed 11/26

8:45 pm-12:09 pm

2 stops15h 24m

Pittsburgh

Sun 11/30

5:46 pm-8:07 pm

3 stops26h 21m

$1,374

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 12/19

1:27 pm-2:11 pm

2 stops24h 44m

$142

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

Fri 12/19

1:27 pm-10:59 pm

1 stop9h 32m

$156

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 $195. 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 $241. 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 $189. Flights to Pittsburgh are more costly at noon, with an average ticket price of $224. 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, 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

Direct flights	None

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

How far is Islip Long Island to Pittsburgh by plane?
There are 356.3 mi between Islip Long Island and Pittsburgh. 5h 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 November 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, 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 8.0 4,242 reviews		Search Southwest flights

Washington

Monroeville

Wheeling

Butler

Canonsburg

Belle Vernon

Triadelphia

New Castle

West Mifflin

Steubenville

Moon

Coraopolis

Wexford

Mars

Cadiz

Freeport

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.