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 1477 LANDED 8:00 PM ET, ~1 MIN EARLY · SCHEDULED TIME UNKNOWN
Yesterday

G4 1477 · VPS → SDF

took off 5:47 PM CT · landed 8:00 PM ET (scheduled time unknown)
Forecast issued Sat 10:00 PM ET · 3h after departure

Odds over time

Arrive at SDF more than 15 minutes late?
31% chance · ±0 pts +10 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 20% 40% 60% 80% 4.9d 2d 1d 12h 6h Departs Lands