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 955 LANDED 5:07 PM ET, ~7 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

G4 955 · PGD → SDF

took off 3:18 PM ET · landed 5:07 PM ET (scheduled time unknown)
Forecast issued Sat 10:00 PM ET · 6h after departure

Odds over time

Arrive at SDF more than 15 minutes late?
31% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 15% 30% 45% 60% 2h Departs Lands