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 1294 LANDED 4:27 PM ET, ~10 MIN LATE · SCHEDULED TIME UNKNOWN

G4 1294 · SBN → SFB

took off 2:27 PM ET · landed 4:27 PM ET (scheduled time unknown)
Forecast issued Wed 10:00 PM ET · 8h after departure

Odds over time

Arrive at SFB more than 15 minutes late?
30% chance · ±0 pts +12 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 1.0d 12h 6h Departs Lands