ISP - PHL

$158 Find Cheap Flights from Islip to Philadelphia

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Philadelphia departing on 9/30. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Philadelphia, 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 Philadelphia, as well as popular online travel agencies
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Booking Insights
Flight Deals

Cheap Flights from Islip to Philadelphia (ISP-PHL)

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

Tue, Sep 30 - Tue, Oct 7
Frontier Logo
11:25 am - 9:11 pmISP-PHL
9h 46m1 stop
Frontier Logo
11:34 am - 8:42 pmPHL-ISP
9h 08m1 stop
$158Frontier
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Fri, Oct 31 - Sun, Nov 2
Frontier Logo
9:54 am - 5:55 pmISP-PHL
8h 01m1 stop
Frontier Logo
10:32 pm - 10:37 amPHL-ISP
12h 05m1 stop
$203Frontier
Find Deal
Mon, Sep 29 - Fri, Oct 3
Frontier Logo
11:40 am - 5:45 pmISP-PHL
6h 05m1 stop
Frontier Logo
8:00 am - 4:27 pmPHL-ISP
8h 27m1 stop
$209Frontier
Find Deal
Thu, Oct 2 - Thu, Oct 9
Frontier Logo
11:40 am - 12:52 amISP-PHL
13h 12m1 stop
Frontier Logo
11:16 am - 8:42 pmPHL-ISP
9h 26m1 stop
$219Frontier
Find Deal
Fri, Oct 31 - Sun, Nov 2
Multiple Airlines Logo
4:58 pm - 10:25 amISP-PHL
17h 27m1 stop
Multiple Airlines Logo
7:47 pm - 10:37 amPHL-ISP
14h 50m2 stops
$297Multiple Airlines
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Tue, Sep 30 - Sat, Oct 4
Multiple Airlines Logo
11:25 am - 1:02 pmISP-PHL
25h 37m1 stop
Multiple Airlines Logo
3:55 pm - 11:00 amPHL-ISP
19h 05m2 stops
$314Multiple Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
Multiple Airlines Logo
11:25 am - 1:02 pmISP-PHL
25h 37m1 stop
Multiple Airlines Logo
8:43 pm - 10:40 amPHL-ISP
13h 57m1 stop
$424Multiple Airlines
Find Deal
Sat, Dec 20 - Sat, Dec 27
Multiple Airlines Logo
6:00 am - 12:32 amISP-PHL
18h 32m1 stop
Multiple Airlines Logo
7:30 am - 11:00 amPHL-ISP
27h 30m2 stops
$790Multiple Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
Multiple Airlines Logo
9:59 am - 9:38 amISP-PHL
23h 39m2 stops
Multiple Airlines Logo
8:00 pm - 11:04 amPHL-ISP
15h 04m2 stops
$835Multiple Airlines
Find Deal
Sat, Dec 20 - Sat, Dec 27
Multiple Airlines Logo
6:00 am - 12:32 amISP-PHL
18h 32m1 stop
Multiple Airlines Logo
6:12 pm - 9:11 amPHL-ISP
14h 59m1 stop
$860Multiple Airlines
Find Deal

Everything you should know

Cheapest round-trip
$158
Frontier
Tue 9/30Tue 10/7
ISP - PHL • 1 stop
Cheapest one-way
$162
JetBlue
Sat 10/18
ISP - PHL • 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 Philadelphia!
Booking Insights

KAYAK's insights & trends for Islip to Philadelphia flights

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

What is the most popular layover airport when flying from Islip to Philadelphia?

Percentage of 1-stop round-trip flights from Islip to Philadelphia chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Boston (BOS) is the top choice – 43% of KAYAK users who clicked on 1-stop flights from Islip to Philadelphia picked an itinerary connecting there.

What is the cheapest layover airport when flying from Islip to Philadelphia?

Average round-trip price for 1-stop flights from Islip to Philadelphia clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Myrtle Beach (MYR) offer the most affordable fares, with an average round-trip price of $320.

Which layover airport offers the shortest total travel time from Islip to Philadelphia?

Shortest average total travel time for 1-stop one-way flights from Islip to Philadelphia via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Boston (BOS) for the shortest journey. The average one-way travel time for flights connecting there is 4h 00m.

Which layover airport has the quickest connection when flying from Islip to Philadelphia?

Average layover duration at different layover airports for 1-stop one-way flights from Islip to Philadelphia, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Myrtle Beach (MYR) often has the shortest layovers from Islip to Philadelphia, with an average of 0h 46m.

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Good to know

Cheapest flight$158
Flight from Islip to Philadelphia

When to book flights from Islip to Philadelphia

Are your dates flexible? Find out the best times to travel from Islip to Philadelphia 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 Islip to Philadelphia

  • What is the cheapest flight from Islip to Philadelphia?

    In the last 3 days, the lowest price for a flight from Islip to Philadelphia was $162 for a one-way ticket and $158 for a round-trip.

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

    A passport is not required to fly from Islip to Philadelphia.

  • Which airports will I be using when flying from Islip to Philadelphia?

    Islip airport is called Islip Long Island and the only airport in Philadelphia is Philadelphia.

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

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

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

    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 Philadelphia.

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

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

    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 Philadelphia with an airline and back to Islip with another airline. Booking your flights between Islip and PHL 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 Islip to Philadelphia?

    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 Philadelphia from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

Information on your arrival and departure airports

Islip (ISP)
Philadelphia (PHL)

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