G4579Allegiant Air · GRR → PHL
live · 13m ago
Route confirmed Allegiant Air

G4579 Grand RapidsGRR PhiladelphiaPHL

G4579 by Allegiant Air flies from Grand Rapids (GRR) to Philadelphia (PHL).

Right nowNext departure tomorrow Operates Mon Fri
08:00

scheduled from GRR

The route today

live boards
GRRGrand RapidsOn-time likelyGRR delay board →
PHLPhiladelphiaOn-time likelyPHL delay board →
GRR→PHLevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
41%Chance of 15+ min delay
1.8%Chance of cancellation
+13 minTypical airport delay in this weather

Driven mainly by GRR (Grand Rapids), currently flying IFR (instrument). 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 at Grand Rapids

Forecast

Fri 6 Nov, local date

High8°Clikely 7°C to 10°C
Low4°Clikely 2°C to 7°C
  • 78% chance of rain

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Philadelphia

Forecast

Fri 6 Nov, local date

High21°Clikely 19°C to 22°C
Low16°Clikely 13°C to 19°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

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 Philadelphia flights

same route · Allegiant Air
G4564departs 12:46 · Mon, Fri
G43490departs 13:26 · Mon, Fri

If G4579 is cancelled, these are the other Allegiant Air nonstop flights from Grand Rapids to Philadelphia, with scheduled departure times in GRR 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 G4579 actually runs

Pro Flight Search has tracked every published board update for G4579 across the GRR and PHL boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at GRR and PHL.

The verdict above is that record speaking, so it reflects how G4579 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around G4579? 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: G4579 Grand Rapids to Philadelphia on-time performance, measured from the GRR and PHL airport boards.

Canonical URL
https://proflightsearch.com/flight/G4579
How we measure this →