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 2788 LANDED 10:34 AM ET, ~4 MIN LATE · SCHEDULED TIME UNKNOWN
Today

AA 2788 · BOS → PHL

took off 9:39 AM ET · landed 10:34 AM ET (scheduled time unknown)
Forecast issued Wed 10:00 AM ET · 0h before departure

Odds over time

Arrive at PHL more than 15 minutes late?
27% chance · ±1 pts +12 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 1.1d 12h 6h Departs Lands