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 2524 LANDED 7:49 AM ET, ~10 MIN LATE · SCHEDULED TIME UNKNOWN

AA 2524 · RDU → DCA

took off 6:59 AM ET · landed 7:49 AM ET (scheduled time unknown)
Forecast issued Wed 10:00 PM ET · 15h after departure

Odds over time

Arrive at DCA more than 15 minutes late?
30% chance · ±0 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% 1.0d 12h 6h Departs Lands