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 1550 LANDED 11:09 AM ET, ~10 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

G4 1550 · FNT → SFB

took off 8:58 AM ET · landed 11:09 AM ET (scheduled time unknown)
Forecast issued Sat 10:00 PM ET · 13h after departure

Odds over time

Arrive at SFB 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% 2h Departs Lands