G4571 JacksonvilleJAX · 19:16 Fort LauderdaleFLL · 21:31
G4571 by Allegiant Air flies from Jacksonville (JAX) to Fort Lauderdale (FLL).
Same number through JAX → GRR → FLL
scheduled from JAX
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at JAX and FLL are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
Tomorrow on this route
ForecastJacksonville to Grand Rapids with Allegiant Air · Mon 2 Nov, local date
- Chance a departure leaves 60+ min late
- 17%1.2× usual
Forecast weather: 95% chance of rain at Jacksonville; 84% chance of rain at Grand Rapids
No cancellation outlook here: this airport's board does not publish cancellations reliably.
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Fewer than one departure a day on this route with this airline, so read it as a rough guide. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Jacksonville to Fort Lauderdale flights today
same route · Allegiant AirIf G4571 is cancelled, these are the other Allegiant Air nonstop flights from Jacksonville to Fort Lauderdale on the same day, with scheduled departure times in JAX local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How G4571 actually runs
Pro Flight Search has tracked every published board update for G4571 across the JAX and FLL boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 1 completed leg so far: landed +56 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how G4571 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N195NV.
Board clocks recorded as JAX and FLL published them.
Planning around G4571? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: G4571 Jacksonville to Fort Lauderdale on-time performance, measured from the JAX and FLL airport boards.
https://proflightsearch.com/flight/G4571