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.

ENDEAVOR · FLIGHT 9E 4981 LANDED 3:26 PM ET, ~8 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

9E 4981 · STL → LGA

took off 12:33 PM CT · landed 3:26 PM ET (scheduled time unknown)
Forecast issued Wed 6:00 PM ET · 4h after departure

Odds over time

Arrive at LGA more than 15 minutes late?
28% chance · ±0 pts +20 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 1.3d 1d 12h 6h Departs Lands