Cheap flights from Islip to Philadelphia

One-way fares from $272 · ISP → PHL · prices found by travellers in the last 48 hours

Compare all dates Philadelphia → Islip
Cheapest fare
$272

Breeze Airways · Sat, Nov 14

Cheapest month
November

from $272

Direct flights
Not recently

Usually 1+ stop

Quickest trip
3h 15m

200 km

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Cheapest month to fly from Islip to Philadelphia

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $272

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About flights from Islip to Philadelphia

Islip (ISP) and Philadelphia (PHL) are about 200 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 3h 15m. Over the next few months, one-way fares start from $272, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Islip to Philadelphia?

The cheapest one-way fare we've seen recently is $272 with Breeze Airways, departing Saturday, November 14, 2026.

What is the cheapest month to fly from Islip to Philadelphia?

November 2026 currently has the lowest fares, from $272 one way.

Are there direct flights from Islip to Philadelphia?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Islip to Philadelphia?

The quickest journey we've seen takes about 3h 15m. Islip and Philadelphia are around 200 km apart.

Which airlines fly from Islip to Philadelphia?

Recent fares on this route were with Breeze Airways.

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