What airlines fly to Pittsburgh?

Spirit Airlines, United Airlines and American Airlines are the top three most popular airlines that fly to Pittsburgh from Islip according to our data. Spirit 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.

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

Breeze Airways is the most popular carrier operating from Islip Long Island to Pittsburgh

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 August 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.

$157 Cheap Flights from Islip to Pittsburgh in 2025

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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 - 12:00 pmISP-PIT

5h 55m1 stop

1:10 pm - 4:05 pmPIT-ISP

2h 55m1 stop

$157Southwest

Find Deal

mié., oct. 1 - mié., oct. 8

5:35 pm - 12:15 amISP-PIT

6h 40m2 stops

6:00 am - 12:10 pmPIT-ISP

6h 10m1 stop

$190Southwest

Find Deal

vie., oct. 24 - dom., oct. 26

5:35 pm - 11:35 pmISP-PIT

6h 00m1 stop

6:05 pm - 11:50 pmPIT-ISP

5h 45m1 stop

$221Southwest

Find Deal

vie., oct. 24 - dom., oct. 26

4:00 pm - 9:55 pmISP-PIT

5h 55m1 stop

6:10 am - 12:25 pmPIT-ISP

6h 15m2 stops

$224Southwest

Find Deal

mié., oct. 1 - mié., oct. 8

11:40 am - 8:49 amISP-PIT

21h 09m1 stop

10:24 am - 10:40 amPIT-ISP

24h 16m1 stop

$225Frontier

Find Deal

jue., oct. 2 - dom., oct. 5

11:40 am - 8:49 amISP-PIT

21h 09m1 stop

6:04 pm - 10:40 amPIT-ISP

16h 36m1 stop

$248

Find Deal

jue., sep. 18 - jue., sep. 25

5:05 pm - 9:30 amISP-PIT

16h 25m1 stop

7:10 am - 10:40 amPIT-ISP

27h 30m1 stop

$261

Find Deal

vie., sep. 5 - mar., sep. 9

11:40 am - 1:32 pmISP-PIT

25h 52m2 stops

3:31 pm - 10:40 amPIT-ISP

19h 09m2 stops

$399Frontier

Find Deal

jue., sep. 18 - jue., sep. 25

8:47 pm - 7:46 amISP-PIT

10h 59m1 stop

5:46 pm - 6:28 pmPIT-ISP

24h 42m2 stops

$556Breeze Airways

Find Deal

vie., sep. 19 - dom., sep. 21

7:36 pm - 3:07 pmISP-PIT

19h 31m2 stops

5:46 pm - 6:28 pmPIT-ISP

24h 42m2 stops

$566Breeze Airways

Find Deal

jue., oct. 2 - dom., oct. 5

Southwest flights from Islip to Pittsburgh

Our best Southwest deals on Islip to Pittsburgh flight tickets

Southwest

Oct 1

ISP6:05 amIslip Long Island

5h 55m

1 stop

PIT12:00 pmPittsburgh

Oct 8

PIT1:10 pmPittsburgh

2h 55m

1 stop

ISP4:05 pmIslip Long Island

$157

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

$190

Find similar

Southwest

Oct 24

ISP5:35 pmIslip Long Island

6h 00m

1 stop

PIT11:35 pmPittsburgh

Oct 26

PIT6:05 pmPittsburgh

5h 45m

1 stop

ISP11:50 pmIslip Long Island

$221

Find similar

Frontier flights from Islip to Pittsburgh

Our best Frontier deals on Islip to Pittsburgh flight tickets

Frontier

Oct 2

ISP11:40 amIslip Long Island

21h 09m

1 stop

PIT8:49 amPittsburgh

Oct 5

PIT10:24 amPittsburgh

24h 16m

1 stop

ISP10:40 amIslip Long Island

$225

Find similar

Frontier

Aug 29

ISP9:58 amIslip Long Island

10h 03m

1 stop

PIT8:01 pmPittsburgh

Aug 31

PIT8:56 pmPittsburgh

11h 12m

1 stop

ISP8:08 amIslip Long Island

$288

Find similar

Frontier

Sep 18

ISP11:40 amIslip Long Island

25h 52m

2 stops

PIT1:32 pmPittsburgh

Sep 25

PIT3:31 pmPittsburgh

19h 09m

2 stops

ISP10:40 amIslip Long Island

$399

Find similar

Fly from

Fly to

Route

Depart

Return

Price

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

mié. 10/1

6:05 am-12:00 pm

1 stop5h 55m

Pittsburgh

mié. 10/8

1:10 pm-4:05 pm

1 stop2h 55m

$157

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

vie. 10/24

5:35 pm-12:15 am

2 stops6h 40m

Pittsburgh

dom. 10/26

6:00 am-12:10 pm

1 stop6h 10m

$190

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

vie. 10/24

5:35 pm-11:35 pm

1 stop6h 00m

Pittsburgh

dom. 10/26

6:05 pm-11:50 pm

1 stop5h 45m

$221

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

mié. 10/1

4:00 pm-9:55 pm

1 stop5h 55m

Pittsburgh

mié. 10/8

6:10 am-12:25 pm

2 stops6h 15m

$224

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

jue. 10/2

11:40 am-8:49 am

1 stop21h 09m

Pittsburgh

dom. 10/5

10:24 am-10:40 am

1 stop24h 16m

$225

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

jue. 9/18

11:40 am-8:49 am

1 stop21h 09m

Pittsburgh

jue. 9/25

6:04 pm-10:40 am

1 stop16h 36m

$248

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

vie. 9/5

5:05 pm-9:30 am

1 stop16h 25m

Pittsburgh

mar. 9/9

7:10 am-10:40 am

1 stop27h 30m

$261

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

jue. 9/18

11:40 am-1:32 pm

2 stops25h 52m

Pittsburgh

jue. 9/25

3:31 pm-10:40 am

2 stops19h 09m

$399

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

vie. 9/19

8:47 pm-7:46 am

1 stop10h 59m

Pittsburgh

dom. 9/21

5:46 pm-6:28 pm

2 stops24h 42m

$556

IslipPittsburgh

ISP - PIT

ISPPIT

Islip Long Island

jue. 10/2

7:36 pm-3:07 pm

2 stops19h 31m

Pittsburgh

dom. 10/5

5:46 pm-6:28 pm

2 stops24h 42m

$566

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 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 $201. 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 $247. 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 $185. Flights to Pittsburgh are more costly at noon, with an average ticket price of $234. 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. 3h 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 August 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 $229	Free Cancellation	Rating 8.0 4,245 reviews		Search Southwest flights

Washington

Monroeville

Wheeling

Butler

Canonsburg

West Mifflin

New Castle

Triadelphia

Steubenville

Belle Vernon

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.