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 1597 LANDED 10:30 PM MT, ~15 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

G4 1597 · IWA → PVU

took off 6:17 AM MSK · landed 10:30 PM MT (scheduled time unknown)
Forecast issued Sat 10:00 PM ET · 22h after departure

Odds over time

Arrive at PVU more than 15 minutes late?
22% chance · ±0 pts −27 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