$122 Find Cheap Flights from Islip to Pennsylvania

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Pennsylvania departing on 8/20. 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 Pennsylvania

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Pennsylvania, 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 Islip to Pennsylvania, as well as popular online travel agencies
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Cheap Flights from Islip to Pennsylvania

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Philadelphia
Philadelphia1 stop$443
Pittsburgh
Pittsburgh1 stop$219
Washington, D.C.
Baltimorenonstop$228
Philadelphia
Philadelphia1 stop$443
Pittsburgh
Pittsburgh1 stop$219
Washington, D.C.
Baltimorenonstop$228

Book Cheap Islip to Pennsylvania Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Pennsylvania 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 Islip to Pennsylvania

Wed, Jul 29 - Fri, Jul 31
Southwest Logo
6:00 am - 12:05 pm
ISP
-
PIT
6h 05m
1 stop
Southwest Logo
5:50 pm - 11:40 pm
PIT
-
ISP
5h 50m
1 stop
$219Southwest
Wed, Jul 29 - Fri, Jul 31
Southwest Logo
6:00 am - 12:05 pm
ISP
-
PIT
6h 05m
1 stop
Southwest Logo
3:50 pm - 11:40 pm
PIT
-
ISP
7h 50m
2 stops
$224Southwest
Sat, Jul 11 - Sat, Jul 18
Southwest Logo
3:30 pm - 10:40 pm
ISP
-
PIT
7h 10m
1 stop
Southwest Logo
5:25 pm - 11:15 pm
PIT
-
ISP
5h 50m
1 stop
$243Southwest
Fri, Aug 14 - Mon, Aug 17
Southwest Logo
1:15 pm - 11:10 pm
ISP
-
PIT
9h 55m
2 stops
Southwest Logo
5:35 am - 9:40 am
PIT
-
ISP
4h 05m
1 stop
$248Southwest
Fri, Jul 10 - Fri, Jul 17
Southwest Logo
3:05 pm - 7:30 pm
ISP
-
PIT
4h 25m
1 stop
Southwest Logo
4:45 pm - 11:45 pm
PIT
-
ISP
7h 00m
1 stop
$254Southwest
Fri, Jul 10 - Fri, Jul 17
Southwest Logo
3:05 pm - 11:10 pm
ISP
-
PIT
8h 05m
2 stops
Southwest Logo
4:45 pm - 11:45 pm
PIT
-
ISP
7h 00m
1 stop
$259Southwest
Thu, Jul 23 - Wed, Jul 29
JetBlue Logo
6:00 am - 2:54 pm
ISP
-
JFK
8h 54m
1 stop
JetBlue Logo
12:00 pm - 9:44 pm
JFK
-
ISP
9h 44m
1 stop
$363JetBlue
Tue, Jul 14 - Tue, Jul 21
JetBlue Logo
6:00 am - 2:15 pm
ISP
-
DCA
8h 15m
1 stop
JetBlue Logo
3:10 pm - 9:44 pm
DCA
-
ISP
6h 34m
1 stop
$373JetBlue
Thu, Jul 9 - Wed, Jul 15
JetBlue Logo
6:00 am - 11:14 pm
ISP
-
LGA
17h 14m
1 stop
JetBlue Logo
7:30 am - 9:44 pm
LGA
-
ISP
14h 14m
1 stop
$383JetBlue
Tue, Jul 14 - Tue, Jul 21
Multiple Airlines Logo
5:27 pm - 8:57 pm
ISP
-
LGA
27h 30m
2 stops
Multiple Airlines Logo
8:29 pm - 9:53 am
LGA
-
ISP
13h 24m
1 stop
$479Multiple Airlines
Booking Insights

KAYAK's insights & trends for Islip to Pennsylvania flights

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

Which airlines provide the cheapest flights from Islip to Pennsylvania?

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 Islip to Pennsylvania were found on Southwest ($219) and JetBlue ($373).

Good to know

Cheapest flight$122
Flight from Islip to Pittsburgh

FAQs - booking Pennsylvania flights

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

    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 Islip to Pennsylvania.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Islip to Pennsylvania 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 Islip to Pennsylvania?

    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 from Islip to Pennsylvania with an airline and back with another airline.

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

    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 from Islip to Pennsylvania 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 Islip to Pennsylvania

 
See real verified KAYAK customer reviews for airlines flying from Islip to Pennsylvania. 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 Islip to Pennsylvania? 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 4237 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
7.5Entertainment
Airline reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

2.0 MediocreMatthew, Jun 2026
CVG - MDW
Read more Southwest reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

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.

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

Information on your arrival and departure airports