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 1529 LANDED 6:54 PM PT, ~11 MIN LATE · SCHEDULED TIME UNKNOWN

AA 1529 · PHL → LAS

took off 5:20 PM ET · landed 6:54 PM PT (scheduled time unknown)
Forecast issued Fri 10:00 PM ET · 5h after departure

Odds over time

Arrive at LAS more than 15 minutes late?
50% chance · ±2 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 20% 40% 60% 80% 1h Departs Lands