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 2010 LANDED 7:42 AM ET, ~9 MIN LATE · SCHEDULED TIME UNKNOWN

AA 2010 · LAX → PHL

took off 12:05 AM PT · landed 7:42 AM ET (scheduled time unknown)
Forecast issued Wed 10:00 PM ET · 19h after departure

Odds over time

Arrive at PHL more than 15 minutes late?
23% chance · ±0 pts +8 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 10% 20% 30% 40% 2h Departs Lands