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.

AMERICAN · FLIGHT AA 512 IN THE AIR (OFF 4:55 PM CT, ETA 7:27 PM ET) · SCHEDULED TIME UNKNOWN
Today

AA 512 · ORD → LGA

took off 4:55 PM CT · expected to land 7:27 PM ET (scheduled time unknown)
Forecast issued Wed 5:00 PM ET · 0h before departure

Odds over time

Arrive at LGA more than 15 minutes late?
64% chance · ±1 pts +6 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 20% 40% 60% 80% 1.1d 12h 6h Departs Lands