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 241 LANDED 6:30 PM CT, ~3 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 241 · DEN → STL

took off 4:00 PM MT · landed 6:30 PM CT (scheduled time unknown)
Forecast issued Tue 7:00 PM ET · 1h after departure

Odds over time

Arrive at STL more than 15 minutes late?
24% chance · ±1 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% 15% 30% 45% 60% 1.1d 12h 6h Departs Lands