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 258 LANDED 2:14 PM MT, ~10 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 258 · AUS → DEN

took off 1:27 PM CT · landed 2:14 PM MT (scheduled time unknown)
Forecast issued Tue 7:00 PM ET · 4h after departure

Odds over time

Arrive at DEN more than 15 minutes late?
25% chance · ±0 pts +11 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% 2.9d 2d 1d 12h 6h Departs Lands