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 2978 LANDED 11:36 PM ET, ~5 MIN LATE · SCHEDULED TIME UNKNOWN

AA 2978 · DCA → PWM

took off 10:29 PM ET · landed 11:36 PM ET (scheduled time unknown)
Forecast issued Fri 10:00 PM ET · 0h before departure

Odds over time

Arrive at PWM more than 15 minutes late?
64% chance · ±3 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 25% 50% 75% 100% 1h Now Departs Lands