What is the cheapest month to fly from Islip, New York to Philadelphia?

The best pricing can be found in the month of September. Prices to Philadelphia from Islip, New York average $250. You can even find prices in September for less than $250, as users have found deals to Philadelphia from as low as $140. The month of October 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.

Most accurate provider : When it comes to deals on Islip, New York-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Philadelphia flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Islip, New York-Philadelphia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$241+ Flights from Islip, NY to Philadelphia

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Cheap flight deals from Islip to Philadelphia

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$425 (Trip.com)
One-way from	$241 (JetBlue)

Provider with most accurate pricing for Islip Long Island-Philadelphia flight deals.

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Provider most trusted by Cheapflights users for Islip Long Island-Philadelphia flights.

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From Islip Long Island to Philadelphia

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One-way flight from Islip Long Island to Philadelphia

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Find flight deals from Islip to Philadelphia

Cheapest flights from Islip to Philadelphia
Explore the most affordable flight options available from Islip to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

Thu 2/132:53 pmISP - PHL

1 stop10h 03mFrontier

Thu 2/205:40 amPHL - ISP

1 stop8h 13mFrontier

Deal found 1/16

$425

Fri 5/166:00 amISP - PHL

1 stop3h 30mJetBlue

Mon 5/193:56 pmPHL - ISP

1 stop5h 12mJetBlue

Deal found 1/16

$543

Best flights from Islip to Philadelphia
Discover carefully curated flight deals from Islip to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 16, 2025.

Thu 2/132:53 pmISP - PHL

1 stop10h 03mFrontier

Thu 2/205:40 amPHL - ISP

1 stop8h 13mFrontier

Deal found 1/16

$425

Fri 5/166:00 amISP - PHL

1 stop3h 30mJetBlue

Mon 5/193:56 pmPHL - ISP

1 stop5h 12mJetBlue

Deal found 1/16

$543

Last-minute flights from Islip to Philadelphia
Discover last-minute flight deals from Islip to Philadelphia. Data last updated January 16, 2025 and is based on user searches.

Thu 2/132:53 pmISP - PHL

1 stop10h 03mFrontier

Thu 2/205:40 amPHL - ISP

1 stop8h 13mFrontier

Deal found 1/16

$425

One-way flights from Islip to Philadelphia
Search for one-way flight options from Islip to Philadelphia. Find affordable one-way fares based on user searches. Data last updated January 16, 2025.

Mon 6/306:00 amISP - PHL

1 stop3h 41mJetBlue

Deal found 1/15

$241

Find flights from Islip to Philadelphia within your budget

Fly from

Fly to

Route

Depart

Return

Price

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Thu 2/13

2:53 pm-12:56 am

1 stop10h 03m

Philadelphia

Thu 2/20

5:40 am-1:53 pm

1 stop8h 13m

$425

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 5/16

6:00 am-9:30 am

1 stop3h 30m

Philadelphia

Mon 5/19

3:56 pm-9:08 pm

1 stop5h 12m

$543

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Mon 6/30

6:00 am-9:41 am

1 stop3h 41m

$241

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Compare providers for flights from Islip to Philadelphia

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to Philadelphia in January.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Islip, New York-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Philadelphia flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Islip, New York-Philadelphia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Travel insights for flights from Islip to Philadelphia

Get recent, data-driven insights about flights from Islip to Philadelphia including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Islip, New York to Philadelphia (average of $236). Flying from Islip, New York to Philadelphia in March is currently the most expensive (average of $295). 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.

Rainfall in Philadelphia by month

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Philadelphia

JetBlue

7.4

Good

3,199 reviews

Reviews

1 / 10

Flight canceled, returned to NY and waiting for the new one. Thanks

JetBlue

7.4

Good

3,199 reviews

JetBlue

7.4

Good

3,199 reviews

Reviews

1 / 10

Flight canceled, returned to NY and waiting for the new one. Thanks

Frontier

6.1

Okay

3,435 reviews

JetBlue

7.4

Good

3,199 reviews

Reviews

1 / 10

Flight canceled, returned to NY and waiting for the new one. Thanks

Related info for your journey

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.
What is the cheapest month to book a flight from Islip, New York to Philadelphia?
Currently, August is the cheapest month in which you can book a flight from Islip, New York to Philadelphia (average of $236). Flying from Islip, New York to Philadelphia in March is currently the most expensive (average of $295). 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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$241+ Cheap flights from Islip, NY to Philadelphia (ISP - PHL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Islip to Philadelphia with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Islip to Philadelphia

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Find flight deals from Islip to Philadelphia

Cheapest flights from Islip to PhiladelphiaExplore the most affordable flight options available from Islip to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

Explore the most affordable flight options available from Islip to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

Find flights from Islip to Philadelphia within your budget

Compare providers for flights from Islip to Philadelphia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to Philadelphia in January.

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.

Travel insights for flights from Islip to Philadelphia

Get recent, data-driven insights about flights from Islip to Philadelphia including ideal travel times, pricing trends, and more.

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

Rainfall in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average rainfall totals by month.

Temperature in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average temperature totals by month.

Reviews of airlines servicing Philadelphia

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 deals for flights from Islip to Philadelphia that include hotel bookings?

How can I find direct flights from Islip to Philadelphia?

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

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

Traveling to a place near Islip?

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Cheapest flights from Islip to Philadelphia
Explore the most affordable flight options available from Islip to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.