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 2561 LANDED 8:42 PM CT, ~11 MIN LATE · SCHEDULED TIME UNKNOWN

AA 2561 · RSW → ORD

took off 7:10 PM ET · landed 8:42 PM CT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 3h after departure

Odds over time

Arrive at ORD more than 15 minutes late?
50% chance · ±2 pts +9 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