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 79 IN THE AIR (OFF 3:15 PM BST, ETA 6:18 PM CT) · SCHEDULED TIME UNKNOWN
Today

AA 79 · LHR → DFW

took off 3:15 PM BST · expected to land 6:18 PM CT (scheduled time unknown)
Forecast issued Tue 4:00 PM ET · 6h after departure

Odds over time

Arrive at DFW more than 15 minutes late?
15% chance · ±1 pts −3 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 13h 6h Departs Now Lands