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 1944 LANDED 9:32 PM ET, ~4 MIN LATE · SCHEDULED TIME UNKNOWN

AA 1944 · TPA → DCA

took off 7:44 PM ET · landed 9:32 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 2h after departure

Odds over time

Arrive at DCA more than 15 minutes late?
41% chance · ±2 pts +2 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% 1.1d 12h 6h Departs Lands