Flights Islip → West Palm Beach
ISP → PBI
Route overview
The flight route from Islip to West Palm Beach has a moderate on-time performance rate of 66%, with an average delay of 24.6 minutes per flight. Over the course of a year, this route operates approximately 337 flights, serving a destination airport that handles nearly 8.66 million passengers annually.
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 Islip (ISP) → West Palm Beach (PBI) route is operated by Southwest Airlines. Across 461 flights monitored in recent months, 69% arrived on time (within 15 min of schedule), with an average delay of 21 minutes. The cancellation rate is 3.69%. FlightGuard's average computed risk is 17.8/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At West Palm Beach the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Islip the average ATFM delay is 3.5 minutes.
Heading to West Palm Beach: what to expect in this direction
Flying from Islip (ISP) to West Palm Beach (PBI) heads south-west for about 1,696 km, a flight time of roughly 2h 32m.
Departures from Islip on this leg cluster in the morning window: about 54% of ISP-PBI flights take off then.
Air-traffic congestion: departing Islip the average ATFM delay is 3.5 min (airspace/NAS (BTS)); arriving into West Palm Beach it is 2.0 min (atfm).
Across 461 tracked ISP-PBI flights, 69% left on time with an average delay of 21 min and a 3.7% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Southwest Airlines (WN) | 73% | 6 min | 3.1% |
Airlines operating ISP-PBI
Airports
Frequently asked questions about ISP-PBI
On the Islip (ISP) -> West Palm Beach (PBI) route, on-time performance is 69% with an average delay of 21 minutes, based on 461 tracked flights.
The cancellation rate on Islip-West Palm Beach is 3.69% across 461 monitored flights.
The route is operated by 1 airline: Southwest Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at West Palm Beach, 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.
