Flights Philadelphia → Islip
PHL → ISP
Route overview
This flight route operates from Philadelphia to Islip with a single scheduled flight per year using a De Havilland Canada DHC-8-300 Dash 8 aircraft. Unfortunately, the flight experiences significant delays, as it has never been on time and typically encounters a mean delay of nearly five hours.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Philadelphia (PHL) → Islip (ISP) route is operated by American Airlines. FlightGuard's average computed risk is 12.2/100 (low), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Islip the average ATFM delay is 3.5 minutes (main cause: airspace/NAS (BTS)). Departing from Philadelphia the average ATFM delay is 2.0 minutes.
Heading to Islip: what to expect in this direction
Flying from Philadelphia (PHL) to Islip (ISP) heads north-east for about 208 km, a flight time of roughly 41m.
Departures from Philadelphia on this leg cluster in the evening window: about 100% of PHL-ISP flights take off then.
Air-traffic congestion: departing Philadelphia the average ATFM delay is 2.0 min (atfm); arriving into Islip it is 3.5 min (airspace/NAS (BTS)).
Route facts
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| American Airlines (AA) | 74% | 16 min | 3.0% |
Airlines operating PHL-ISP
Airports
Frequently asked questions about PHL-ISP
Route-specific punctuality data isn't available yet. Check your flight on FlightGuard for a real-time analysis.
The cancellation rate varies by airline and season. Check your flight risk for an up-to-date estimate.
The route is operated by 1 airline: American Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Islip, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
