G4539 New YorkEWR Grand RapidsGRR
G4539 by Allegiant Air flies from New York (EWR) to Grand Rapids (GRR).
scheduled from EWR
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at EWR and GRR are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, 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 →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other New York to Grand Rapids flights today
same route · Allegiant AirIf G4539 is cancelled, this is the other Allegiant Air nonstop flight from New York to Grand Rapids on the same day, with scheduled departure times in EWR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How G4539 actually runs
Pro Flight Search has tracked every published board update for G4539 across the EWR and GRR boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at EWR and GRR.
The verdict above is that record speaking, so it reflects how G4539 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around G4539? 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 — G4539 New York to Grand Rapids on-time performance, measured from the EWR and GRR airport boards.
https://proflightsearch.com/flight/G4539
.