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 1351 LANDED 9:22 PM ET, ~4 MIN LATE · SCHEDULED TIME UNKNOWN

G4 1351 · PIA → SRQ

took off 6:15 PM CT · landed 9:22 PM ET (scheduled time unknown)
Forecast issued Fri 10:00 PM ET · 3h after departure

Odds over time

Arrive at SRQ more than 15 minutes late?
18% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 10% 20% 30% 40% 1h Departs Lands