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Cheap flights from Islip to Philadelphia (ISP - PHL) from $399

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. 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.
ISP — PHL
Jun 5 — Jun 121
From?
To?
Wed 6/5
Wed 6/12
1 adult, Economy
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What is the cheapest month to fly from Islip, New York to Philadelphia?

The best pricing can be found in the month of March. Prices to Philadelphia from Islip, New York average $236. You can even find prices in March for less than $236, as users have found deals to Philadelphia from as low as $158. The month of May appears to be one of the more expensive times to travel to Philadelphia from Islip, New York. Flying in the targeted month can save you up to 48%.

What is the cheapest time of day to fly from ISP to PHL?

When flying from Islip, New York to Philadelphia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Islip to Philadelphia flights in May & June 2024

Find cheap flight options from Islip to Philadelphia specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,765,679 searches. Prices were last updated on May 31, 2024.
Fri 6/71:57 pmISP - PHL
2 stops21h 36mMultiple Airlines
Fri 6/146:17 amPHL - ISP
2 stops10h 50mMultiple Airlines
Deal found 5/29$545
Fri 6/71:57 pmISP - PHL
3 stops30h 08mMultiple Airlines
Fri 6/146:17 amPHL - ISP
2 stops10h 50mMultiple Airlines
Deal found 5/29$573

Islip to Philadelphia 2024 flight deals

Discover exclusive flight deals for travel between Islip and Philadelphia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,765,679 searches. Data last updated May 31, 2024.
Fri 7/123:35 pmISP - PHL
2 stops19h 52mMultiple Airlines
Sun 7/147:57 pmPHL - ISP
2 stops21h 10mMultiple Airlines
Deal found 5/30$399
Fri 7/125:47 pmISP - PHL
3 stops24h 52mMultiple Airlines
Sun 7/147:57 pmPHL - ISP
2 stops21h 10mMultiple Airlines
Deal found 5/30$410
Fri 7/125:47 pmISP - PHL
3 stops24h 52mMultiple Airlines
Sun 7/142:05 pmPHL - ISP
3 stops27h 02mMultiple Airlines
Deal found 5/30$466
Fri 6/71:57 pmISP - PHL
2 stops21h 36mMultiple Airlines
Fri 6/146:17 amPHL - ISP
2 stops10h 50mMultiple Airlines
Deal found 5/29$545
Fri 6/71:57 pmISP - PHL
3 stops30h 08mMultiple Airlines
Fri 6/146:17 amPHL - ISP
2 stops10h 50mMultiple Airlines
Deal found 5/29$573

Islip to Philadelphia flights leaving soon

Find last-minute flight options from Islip to Philadelphia for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,765,679 searches. Data last updated May 31, 2024.
Fri 6/71:57 pmISP - PHL
2 stops21h 36mMultiple Airlines
Fri 6/146:17 amPHL - ISP
2 stops10h 50mMultiple Airlines
Deal found 5/29$545
Fri 6/71:57 pmISP - PHL
3 stops30h 08mMultiple Airlines
Fri 6/146:17 amPHL - ISP
2 stops10h 50mMultiple Airlines
Deal found 5/29$573

Find flights from Islip to Philadelphia within your budget

Customize your flight search to find flights from Islip to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,765,679 searches. Data last updated May 31, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$404 - $472

Route

Depart

Return

Price

Islip Long IslandPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 7/12

2 stops19h 52m

Philadelphia

Sun 7/14

2 stops21h 10m

$404

Islip Long IslandPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 7/12

3 stops24h 52m

Philadelphia

Sun 7/14

2 stops21h 10m

$416

Islip Long IslandPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 7/12

3 stops24h 52m

Philadelphia

Sun 7/14

3 stops33h 26m

$472

Flights are sorted by cheapest first

Deals found on 5/30

No data available for this route at this time. Please check back soon.

Best time to book a flight from Islip to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Islip with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Islip to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Islip, New York to Philadelphia for under $500 on Cheapflights?

    Yes, there are multiple flights from Islip, New York to Philadelphia for under $500. The cheapest flight booked recently is on Multiple Airlines for just $404, but on average you can expect to pay $430.

  • Are there last-minute flights available from Islip, New York to Philadelphia for under $600?

    There are currently 2+ open flights from Islip, New York to Philadelphia within the next 7 days for less than $600.

  • What does ISP to PHL mean?

    This is defined as Islip Long Island Airport (ISP) and Philadelphia Airport (PHL). Codes like Philadelphia Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Islip to Philadelphia that include extra baggage allowance?

    The amount of baggage you can bring on your Islip to Philadelphia flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Islip to Philadelphia with specific airlines?

    Yes, Cheapflights allows you to browse and filter Islip to Philadelphia flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Islip to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Islip to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Philadelphia.

  • Can I find deals for business class flights from Islip to Philadelphia?

    Yes. Cheapflights offers flight deals from Islip to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Islip to Philadelphia that allow pets onboard?

    Many airlines flying from Islip to Philadelphia offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Islip to Philadelphia?

    Yes, you can often find last-minute deals on Islip to Philadelphia flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Islip, New York to Philadelphia flight deals updated?

    The Islip, New York to Philadelphia flight deals you see on this page were last updated on 5/30.

  • What is the cheapest month to book a flight from Islip, New York to Philadelphia?

    Currently, October is the cheapest month in which you can book a flight from Islip, New York to Philadelphia (average of $227). Flying from Islip, New York to Philadelphia in July is currently the most expensive (average of $298). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Search flights from Islip to Philadelphia by cabin class

Find flights from Islip to Philadelphia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Islip to Philadelphia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Islip to Philadelphia?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Islip to Philadelphia for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Islip to Philadelphia with no change fees?

Need flexible booking options for your flight to Philadelphia from Islip? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Islip to Philadelphia become cheaper?

Yes, Cheapflights offers price alerts on Islip to Philadelphia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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