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 2731 LANDED 6:32 PM ET, ~2 MIN LATE · SCHEDULED TIME UNKNOWN

AA 2731 · PHL → PIT

took off 5:50 PM ET · landed 6:32 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 4h after departure

Odds over time

Arrive at PIT more than 15 minutes late?
42% chance · ±0 pts +1 pt · 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