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.

SOUTHWEST · FLIGHT WN 204 LANDED 7:49 AM MT, ~11 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 204 · ATL → DEN

took off 7:12 AM ET · landed 7:49 AM MT (scheduled time unknown)
Forecast issued Wed 9:00 AM ET · 2h after departure

Odds over time

Arrive at DEN more than 15 minutes late?
11% chance · ±0 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% 1.0d 12h 6h Departs Lands