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 776 IN THE AIR (OFF 12:37 PM PT, ETA 5:34 PM CT) · SCHEDULED TIME UNKNOWN
Today

WN 776 · LAX → STL

took off 12:37 PM PT · expected to land 5:34 PM CT (scheduled time unknown)
Forecast issued Tue 3:00 PM ET · 1h before departure

Odds over time

Arrive at STL more than 15 minutes late?
24% chance · ±0 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% 12h 6h Now Departs Lands