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 1525 LANDED 7:02 PM ET, ~7 MIN LATE · SCHEDULED TIME UNKNOWN
Today

AA 1525 · LAS → DCA

took off 11:55 AM PT · landed 7:02 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 7h after departure

Odds over time

Arrive at DCA more than 15 minutes late?
46% 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% 15% 30% 45% 60% 19h 12h 6h Departs Lands