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 1954 LANDED 5:43 AM CT, ~12 MIN LATE · SCHEDULED TIME UNKNOWN
Today

AA 1954 · SFO → ORD

took off 11:56 PM PT · landed 5:43 AM CT (scheduled time unknown)
Forecast issued Mon 10:00 AM ET · 7h after departure

Odds over time

Arrive at ORD more than 15 minutes late?
13% chance · ±0 pts −2 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 6.1d 2d 1d 12h 6h Departs Lands