Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

ALLEGIANT · FLIGHT G4 2164 SCHEDULED · SCHEDULED TIME UNKNOWN
Today

G4 2164 · IWA → GRR

departs 3:44 AM MSK · arrives 10:58 PM ET
Your aircraft is N294NV (A320), coming in as G4 552 from GRR: landed 2:32 AM MSK.
Forecast issued Fri 6:00 PM ET · 2h before departure

Odds over time

Arrive at GRR more than 15 minutes late?
32% chance · ±0 pts – · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
LIVE IN THE AIR 0% 10% 20% 30% 40% Now Departs Lands