PIT - ISP

$112 Find Cheap Flights from Pittsburgh to Islip

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 5/8. 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
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$243
Southwest
Fri 6/5Sun 6/7
PIT - ISP • 1 stop
Cheapest one-way
$112
Southwest
Fri 5/8
PIT - ISP • 1 stop
Top airlines
Southwest
Cheapest • from $243 (round-trip)
Southwest
Best reviews • 8.0 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, Jun 5 - Sun, Jun 7
Southwest Logo
5:50 pm - 11:35 pm
PIT
-
ISP
5h 45m
1 stop
Southwest Logo
6:45 am - 1:25 pm
ISP
-
PIT
6h 40m
1 stop
$243Southwest
Fri, Jun 5 - Sun, Jun 7
Southwest Logo
3:50 pm - 11:35 pm
PIT
-
ISP
7h 45m
2 stops
Southwest Logo
6:45 am - 1:25 pm
ISP
-
PIT
6h 40m
1 stop
$248Southwest
Fri, Jun 5 - Sun, Jun 7
Southwest Logo
3:50 pm - 11:35 pm
PIT
-
ISP
7h 45m
2 stops
Southwest Logo
2:55 pm - 12:20 am
ISP
-
PIT
9h 25m
2 stops
$320Southwest
Fri, Aug 7 - Thu, Aug 13
Southwest Logo
11:20 am - 4:25 pm
PIT
-
ISP
5h 05m
1 stop
Southwest Logo
6:10 am - 12:10 pm
ISP
-
PIT
6h 00m
1 stop
$329Southwest
Fri, Aug 7 - Thu, Aug 13
Southwest Logo
11:20 am - 4:25 pm
PIT
-
ISP
5h 05m
1 stop
Southwest Logo
1:15 pm - 11:10 pm
ISP
-
PIT
9h 55m
2 stops
$342Southwest
Fri, Aug 28 - Sun, Aug 30
Southwest Logo
11:20 am - 4:25 pm
PIT
-
ISP
5h 05m
1 stop
Southwest Logo
7:00 am - 6:10 pm
ISP
-
PIT
11h 10m
1 stop
$362Southwest
Fri, Aug 7 - Thu, Aug 13
Southwest Logo
8:40 am - 4:25 pm
PIT
-
ISP
7h 45m
2 stops
Southwest Logo
12:35 pm - 9:50 pm
ISP
-
PIT
9h 15m
2 stops
$367Southwest
Fri, Aug 28 - Sun, Aug 30
Southwest Logo
6:10 am - 12:35 pm
PIT
-
ISP
6h 25m
2 stops
Southwest Logo
7:00 am - 6:10 pm
ISP
-
PIT
11h 10m
1 stop
$368Southwest
Thu, Jul 30 - Sun, Aug 2
Southwest Logo
4:40 pm - 11:40 pm
PIT
-
ISP
7h 00m
1 stop
Southwest Logo
6:00 am - 11:30 am
ISP
-
PIT
5h 30m
1 stop
$380Southwest
Thu, Jul 30 - Sun, Aug 2
Southwest Logo
8:00 am - 5:15 pm
PIT
-
ISP
9h 15m
2 stops
Southwest Logo
6:00 am - 11:30 am
ISP
-
PIT
5h 30m
1 stop
$385Southwest
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 72 hours.

In the past 3 days, the cheapest round-trip tickets from Pittsburgh to Islip were found on Southwest ($243) and Breeze Airways ($671).

Find deals

Good to know

Cheapest flight$112
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 3 days, the lowest price for a flight from Pittsburgh to Islip was $112 for a one-way ticket and $243 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.
8.0
SouthwestOverall score based on 4319 reviews
8.1Boarding
8.6Crew
8.0Comfort
7.0Food
7.5Entertainment
Airline reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

4.0 OkayKenny, Mar 2026
TPA - BWI
Read more Southwest reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

WiFi was not working and didn’t have a beverage service

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

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

Information on your arrival and departure airports

Pittsburgh (PIT)
Islip (ISP)