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Cheap flights from Islip, New York to Philadelphia from $319

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Philadelphia departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Islip, New York to Philadelphia

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Islip, New York to Philadelphia.
Frontier Logo
9:10 am - 5:16 pmISP-PHL
32h 06m2 stops
Frontier Logo
5:05 am - 1:18 pmPHL-ISP
8h 13m1 stop
$319Frontier
Find Deal
lun., abr. 21 - vie., abr. 25
Frontier Logo
9:29 pm - 7:32 amISP-PHL
10h 03m1 stop
Frontier Logo
5:05 am - 1:18 pmPHL-ISP
8h 13m1 stop
$372Frontier
Find Deal
lun., abr. 21 - vie., abr. 25
JetBlue Logo
6:00 am - 9:41 amISP-PHL
3h 41m1 stop
JetBlue Logo
6:09 pm - 9:28 pmPHL-ISP
3h 19m1 stop
$373JetBlue
Find Deal
sáb., may. 3 - sáb., may. 10
 Logo
2:35 pm - 12:09 amISP-PHL
33h 34m3 stops
 Logo
10:08 am - 10:11 amPHL-ISP
24h 03m2 stops
sáb., abr. 19 - mié., abr. 23
JetBlue Logo
6:00 am - 9:38 amISP-PHL
3h 38m1 stop
JetBlue Logo
5:30 pm - 9:28 pmPHL-ISP
3h 58m1 stop
$568JetBlue
Find Deal
mar., may. 6 - jue., may. 8
 Logo
2:35 pm - 12:09 amISP-PHL
33h 34m3 stops
 Logo
10:08 am - 10:11 amPHL-ISP
24h 03m3 stops
sáb., abr. 19 - mié., abr. 23
JetBlue Logo
6:00 am - 9:41 amISP-PHL
3h 41m1 stop
JetBlue Logo
5:30 pm - 9:28 pmPHL-ISP
3h 58m1 stop
$579JetBlue
Find Deal
jue., may. 1 - jue., may. 8
JetBlue Logo
6:00 am - 9:38 amISP-PHL
3h 38m1 stop
JetBlue Logo
5:30 pm - 9:28 pmPHL-ISP
3h 58m1 stop
$603JetBlue
Find Deal
mar., may. 13 - jue., may. 15
 Logo
10:50 am - 8:10 amISP-PHL
21h 20m2 stops
 Logo
6:57 am - 5:59 pmPHL-ISP
11h 02m1 stop
sáb., abr. 26 - lun., abr. 28
 Logo
6:20 pm - 7:57 pmISP-PHL
25h 37m1 stop
 Logo
10:08 am - 10:11 amPHL-ISP
24h 03m2 stops
sáb., abr. 19 - mié., abr. 23

Frontier flights from Islip, New York to Philadelphia

Our best Frontier deals on Islip, New York to Philadelphia flight tickets
Frontier
Apr 21
ISP9:10 amIslip Long Island
32h 06m
2 stops
PHL5:16 pmPhiladelphia
Apr 25
PHL5:05 amPhiladelphia
8h 13m
1 stop
ISP1:18 pmIslip Long Island
Frontier
Apr 21
ISP9:29 pmIslip Long Island
10h 03m
1 stop
PHL7:32 amPhiladelphia
Apr 25
PHL5:05 amPhiladelphia
8h 13m
1 stop
ISP1:18 pmIslip Long Island
Frontier
Apr 6
ISP9:00 amIslip Long Island
25h 25m
1 stop
PHL10:25 amPhiladelphia
Apr 8
PHL5:30 amPhiladelphia
26h 40m
1 stop
ISP8:10 amIslip Long Island

JetBlue flights from Islip, New York to Philadelphia

Our best JetBlue deals on Islip, New York to Philadelphia flight tickets
JetBlue
May 3
ISP6:00 amIslip Long Island
3h 41m
1 stop
PHL9:41 amPhiladelphia
May 10
PHL6:09 pmPhiladelphia
3h 19m
1 stop
ISP9:28 pmIslip Long Island
JetBlue
May 6
ISP6:00 amIslip Long Island
3h 38m
1 stop
PHL9:38 amPhiladelphia
May 8
PHL5:30 pmPhiladelphia
3h 58m
1 stop
ISP9:28 pmIslip Long Island
JetBlue
May 1
ISP6:00 amIslip Long Island
3h 41m
1 stop
PHL9:41 amPhiladelphia
May 8
PHL5:30 pmPhiladelphia
3h 58m
1 stop
ISP9:28 pmIslip Long Island

See travel insights to Philadelphia from

How to get the cheapest flight ticket from Islip, New York to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Islip, New York to Philadelphia is on a Friday. Travelers who choose to depart for Philadelphia on a Friday will often find tickets for as low as $395. On the other hand, Sunday is the most expensive day to depart from Islip, New York because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $662.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from Islip, New York to Philadelphia in the evening for as low as $239. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the afternoon when prices are around $593.

When to book flights from Islip, New York to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Islip, New York to Philadelphia (ISP to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Philadelphia

Best Price Found

$445

Fastest flight time

3h 38m

Direct flights

None

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Islip, New York in the past 72 hours is $445. The best round-trip flight deal from Islip, New York to Philadelphia found on momondo in the last 72 hours is $319.
The fastest flight from Islip, New York to Philadelphia takes 3h 38m
There are no direct flights from Islip, New York to Philadelphia. Popular non-direct route for this connection is Islip Long Island Airport - Philadelphia Airport.
There is 1 airport near Philadelphia: Philadelphia (PHL)

  • How far is Islip Long Island to Philadelphia by plane?

    There are 115.4 mi between Islip Long Island and Philadelphia. 3h 38m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Islip Long Island Airport to Philadelphia Airport?

    Prices for flights from Islip Long Island Airport to Philadelphia Airport are updated daily.

  • How old do you have to be to fly from Islip Long Island Airport to Philadelphia Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The required travel and health documents for your Philadelphia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.


Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Rehoboth Beach
Cape May
Ocean City
Wildwood Crest
Reading
King of Prussia
Newark
Dover
North Wildwood
Cherry Hill
Dewey Beach
Lewes
Exton
Vineland
Essington
Pottstown
New Castle
Avalon
West Chester

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Philadelphia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Islip to Philadelphia for you.

Can I find flights from Islip to Philadelphia with flexible booking policies on momondo?

All flight searches from Islip to Philadelphia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Islip to Philadelphia?

Once you have performed a search for Islip to Philadelphia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Islip to Philadelphia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Philadelphia from Islip. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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