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 1456 LANDED 4:09 PM MT, ~9 MIN LATE · SCHEDULED TIME UNKNOWN

AA 1456 · DFW → SLC

took off 3:01 PM CT · landed 4:09 PM MT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 6h after departure

Odds over time

Arrive at SLC more than 15 minutes late?
42% chance · ±0 pts +5 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% 20h 12h 6h Departs Lands