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 3121 LANDED 6:49 PM ET, ~5 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

AA 3121 · CLT → BWI

took off 5:51 PM ET · landed 6:49 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 4h after departure

Odds over time

Arrive at BWI more than 15 minutes late?
41% chance · ±0 pts +4 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% 1.1d 12h 6h Departs Lands