G4577Allegiant Air · GRR → JAX
live · 7h ago
Route confirmed Allegiant Air

G4577 Grand RapidsGRR · 15:59 JacksonvilleJAX · 18:21

G4577 by Allegiant Air flies from Grand Rapids (GRR) to Jacksonville (JAX).

Right nowNext departure today Operates daily
15:59

scheduled from GRR

Typical gate push+8 minmedian posted departure
Typical arrival−25 minmedian over 1 operations
Wins back in air~33 minmedian gate push vs arrival · how planes make up time →

The route today

live boards
GRRGrand RapidsOn-time likelyGRR delay board →
JAXJacksonvilleOn-time likelyJAX delay board →
GRR→JAXevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
45%Chance of 15+ min delay
2.2%Chance of cancellation
+10 minAvg hub delay right now

Conditions at GRR and JAX 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 departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Grand Rapids to Jacksonville flights

same route · Allegiant Air
G4544departs 12:46 · Mon, Fri
G42206departs 15:57 · Mon, Fri

If G4577 is cancelled, these are the other Allegiant Air nonstop flights from Grand Rapids to Jacksonville, with scheduled departure times in GRR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How G4577 actually runs

Pro Flight Search has tracked every published board update for G4577 across the GRR and JAX boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: left a little late (~7 min) but landed about 21 min early. Not enough to call it.

The verdict above is that record speaking, so it reflects how G4577 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-12GRR 15:59 16:07 (+8)JAX 18:21 17:56 (−25)

Aircraft

Recent tails: N196NV.

Board clocks recorded as GRR and JAX published them.

Planning around G4577? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — G4577 Grand Rapids to Jacksonville on-time performance, measured from the GRR and JAX airport boards.

Canonical URL
https://proflightsearch.com/flight/G4577
How we measure this →