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 778 LANDED 4:53 AM ET, ~1 MIN LATE · SCHEDULED TIME UNKNOWN

AA 778 · LAX → MIA

took off 9:14 PM PT · landed 4:53 AM ET (scheduled time unknown)
Forecast issued Fri 10:00 PM ET · 2h before departure

Odds over time

Arrive at MIA more than 15 minutes late?
35% chance · ±0 pts – · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
LIVE IN THE AIR 0% 15% 30% 45% 60% Now Departs Lands