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.

DELTA · FLIGHT DL 912 IN THE AIR (OFF 12:00 AM MT, ETA 5:21 AM ET) · SCHEDULED TIME UNKNOWN
Today

DL 912 · SLC → ATL

took off 12:00 AM MT · expected to land 5:21 AM ET (scheduled time unknown)
Forecast issued Sat 3:00 AM ET · 1h after departure

Odds over time

Arrive at ATL more than 15 minutes late?
12% chance · ±1 pts −1 pt · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 5% 10% 15% 20% 6.1d 2d 1d 12h 6h Departs Lands