How does KAYAK find such low prices on flights from Pennsylvania 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 Pennsylvania to Islip. Visit our flight page for the latest deals!>/a>

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Pennsylvania is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Pennsylvania 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 Pennsylvania with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pennsylvania 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 Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$83 CHEAP FLIGHTS from Pennsylvania to Islip

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Flight Deals

Cheap Flights from Pennsylvania to Islip

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

Round-trip

One-way

Last minute

Recent round-trip flight deals from Pennsylvania to Islip

Mon, Sep 29 - Fri, Oct 3

10:16 pm - 10:40 amPHL-ISP

12h 24m1 stop

5:05 pm - 12:52 amISP-PHL

7h 47m1 stop

$158Frontier

Find Deal

Thu, Nov 13 - Sat, Nov 15

5:55 pm - 11:50 pmPIT-ISP

5h 55m1 stop

3:40 pm - 9:35 pmISP-PIT

5h 55m1 stop

$185Southwest

Find Deal

Thu, Nov 13 - Sat, Nov 15

5:55 pm - 11:50 pmPIT-ISP

5h 55m1 stop

1:30 pm - 10:45 pmISP-PIT

9h 15m2 stops

$190Southwest

Find Deal

Fri, Oct 17 - Mon, Oct 20

9:53 pm - 10:37 amPHL-ISP

12h 44m1 stop

9:49 am - 10:39 pmISP-PHL

12h 50m1 stop

$198Frontier

Find Deal

Mon, Sep 29 - Fri, Oct 3

8:43 pm - 10:40 amPHL-ISP

13h 57m1 stop

5:05 pm - 5:05 pmISP-PHL

24h 00m2 stops

$244Multiple Airlines

Find Deal

Tue, Sep 30 - Sat, Oct 4

7:10 am - 10:40 amPIT-ISP

27h 30m1 stop

5:05 pm - 9:29 amISP-PIT

16h 24m1 stop

$297Multiple Airlines

Find Deal

Wed, Nov 19 - Sun, Nov 23

8:35 pm - 9:45 amJFK-ISP

13h 10m1 stop

10:24 am - 10:19 pmISP-JFK

11h 55m1 stop

$312JetBlue

Find Deal

Thu, Jan 8 - Sun, Jan 11

2:10 pm - 11:15 amIAD-ISP

21h 05m1 stop

12:00 pm - 8:06 pmISP-IAD

8h 06m1 stop

$314Breeze Airways

Find Deal

Thu, Nov 20 - Sun, Nov 23

9:53 am - 6:01 pmEWR-ISP

8h 08m1 stop

10:24 am - 7:47 pmISP-EWR

9h 23m1 stop

$337JetBlue

Find Deal

Thu, Nov 13 - Sun, Nov 16

1:31 pm - 6:56 pmPIT-ISP

5h 25m1 stop

7:36 pm - 3:07 pmISP-PIT

19h 31m2 stops

$590Breeze Airways

Find Deal

Cheapest round-trip

$158

Frontier

Mon 9/29Fri 10/3

PHL - ISP • 1 stop

Cheapest one-way

$83

Frontier

Thu 9/25

IAD - ISP • 1 stop

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KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Islip!

Useful Info

Low season	January
High season	July
Cheapest flight	$83

Best time to beat the crowds with an average 12% drop in price.

Most popular time to fly with an average 7% increase in price.

Flight from Washington Dulles Airport to Islip

How does KAYAK find such low prices on flights from Pennsylvania 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 Pennsylvania to Islip.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pennsylvania to Islip?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from 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 Pennsylvania 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 Pennsylvania with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pennsylvania 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 Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Riverhead

Amagansett

Everything you need to know for your flight to Islip

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Islip

Islip (ISP)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

ISP

$83 Find Cheap Flights from Pennsylvania to Islip

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

Cheap Flights from Pennsylvania to Islip

Recent round-trip flight deals from Pennsylvania to Islip

Recent one-way flight deals from Pennsylvania to Islip

Recent last minute flight deals from Pennsylvania to Islip

Everything you should know

Good to know

FAQs for booking flights from Pennsylvania to Islip

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

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

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

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pennsylvania 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 Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Islip?

Everything you need to know for your flight to Islip

Information on the airport you'll fly into in Islip

Cabin class types available on flights to Pennsylvania

Complete your trip to Islip with a hotel stay or car rental

Find direct flights for Islip

Flights to other popular destinations

Flights from domestic origins to Islip

Choose which airport to fly into in Islip

Find deals for your return flight