PIT - ISP

$120 Find Cheap Flights from Pittsburgh to Islip - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Pittsburgh to Islip departing on 8/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Pittsburgh to Islip, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Pittsburgh to Islip, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$224
Southwest
Fri 7/24Tue 7/28
PIT - ISP • 1 stop
Cheapest one-way
$120
Breeze Airways
Sun 8/23
PIT - ISP • 1 stop
Top airlines
Southwest
Cheapest • from $224 (round-trip)
Southwest
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Pittsburgh and Islip. You'll need at least 1 connection.
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Flight Deals

Cheap Flights from Pittsburgh to Islip (PIT-ISP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Pittsburgh to Islip that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Pittsburgh to Islip

Fri, Jul 24 - Tue, Jul 28
Southwest Logo
9:55 pm - 9:45 am
PIT
-
ISP
11h 50m
1 stop
Southwest Logo
6:00 am - 12:05 pm
ISP
-
PIT
6h 05m
1 stop
$224Southwest
Sat, Jul 11 - Fri, Jul 17
Southwest Logo
5:25 pm - 11:15 pm
PIT
-
ISP
5h 50m
1 stop
Southwest Logo
3:05 pm - 7:30 pm
ISP
-
PIT
4h 25m
1 stop
$243Southwest
Sat, Jul 11 - Fri, Jul 17
Southwest Logo
5:25 pm - 11:15 pm
PIT
-
ISP
5h 50m
1 stop
Southwest Logo
3:05 pm - 12:55 am
ISP
-
PIT
9h 50m
2 stops
$248Southwest
Sat, Jul 11 - Fri, Jul 17
Southwest Logo
5:25 pm - 11:15 pm
PIT
-
ISP
5h 50m
1 stop
Southwest Logo
5:50 pm - 11:35 pm
ISP
-
PIT
5h 45m
1 stop
$254Southwest
Sat, Jul 11 - Fri, Jul 17
Southwest Logo
5:25 pm - 11:15 pm
PIT
-
ISP
5h 50m
1 stop
Southwest Logo
3:05 pm - 12:55 am
ISP
-
PIT
9h 50m
2 stops
$259Southwest
Thu, Jul 16 - Tue, Jul 21
Southwest Logo
4:45 pm - 11:45 pm
PIT
-
ISP
7h 00m
1 stop
Southwest Logo
4:40 pm - 10:30 pm
ISP
-
PIT
5h 50m
1 stop
$268Southwest
Fri, Jul 24 - Tue, Jul 28
Southwest Logo
3:50 pm - 11:40 pm
PIT
-
ISP
7h 50m
2 stops
Southwest Logo
6:00 am - 2:00 pm
ISP
-
PIT
8h 00m
2 stops
$287Southwest
Thu, Jul 23 - Mon, Jul 27
Southwest Logo
9:55 pm - 10:30 am
PIT
-
ISP
12h 35m
1 stop
Southwest Logo
6:00 am - 11:45 am
ISP
-
PIT
5h 45m
1 stop
$297Southwest
Sat, Jul 18 - Mon, Jul 20
Southwest Logo
5:25 pm - 11:15 pm
PIT
-
ISP
5h 50m
1 stop
Southwest Logo
5:20 am - 1:05 pm
ISP
-
PIT
7h 45m
1 stop
$320Southwest
Thu, Jul 23 - Mon, Jul 27
Southwest Logo
9:55 pm - 10:30 am
PIT
-
ISP
12h 35m
1 stop
Southwest Logo
6:00 am - 2:50 pm
ISP
-
PIT
8h 50m
2 stops
$321Southwest
Booking Insights

KAYAK's insights & trends for Pittsburgh to Islip flights

Get data-powered insights and trends into flights from Pittsburgh to Islip to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Pittsburgh to Islip?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Pittsburgh to Islip were found on Southwest ($224) and Frontier ($323).

Find deals

Good to know

Cheapest flight$120
Flight from Pittsburgh to Islip

When to book flights from Pittsburgh to Islip

Are your dates flexible? Find out the best times to travel from Pittsburgh to Islip based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Pittsburgh to Islip

  • What is the cheapest flight from Pittsburgh to Islip?

    In the last 5 days, the lowest price for a flight from Pittsburgh to Islip was $120 for a one-way ticket and $224 for a round-trip.

  • Do I need a passport to fly between Pittsburgh and Islip?

    No, a passport isn't needed to fly from Pittsburgh to Islip. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Pittsburgh to Islip?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Pittsburgh to Islip?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Pittsburgh to Islip.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pittsburgh to Islip?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Pittsburgh is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Pittsburgh to Islip?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Pittsburgh with another airline. Booking your flights between Pittsburgh and ISP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pittsburgh to Islip?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Pittsburgh up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Pittsburgh to Islip

 
See real verified KAYAK customer reviews for airlines flying from Pittsburgh to Islip. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Pittsburgh to Islip? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4235 reviews
8.0Comfort
8.6Crew
8.1Boarding
7.5Entertainment
7.0Food
Airline reviews

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

10.0 ExcellentAnonymous, Jun 2026
DEN - ORF
Read more Southwest reviews

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

Everything you need to know for your flight from Pittsburgh to Islip

Information on your arrival and departure airports

Pittsburgh (PIT)
Islip (ISP)