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 891 LANDED 6:00 PM ET, ~14 MIN LATE · SCHEDULED TIME UNKNOWN

AA 891 · DFW → PHL

took off 2:06 PM CT · landed 6:00 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 7h after departure

Odds over time

Arrive at PHL more than 15 minutes late?
39% chance · ±0 pts +3 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% 3.2d 2d 1d 12h 6h Departs Lands