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 1232 LANDED 6:37 AM PT, ~2 MIN LATE · SCHEDULED TIME UNKNOWN

WN 1232 · OKC → LAS

took off 6:29 AM CT · landed 6:37 AM PT (scheduled time unknown)
Forecast issued Wed 10:00 PM ET · 14h after departure

Odds over time

Arrive at LAS more than 15 minutes late?
10% chance · ±0 pts +4 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 5% 10% 15% 20% 1.0d 12h 6h Departs Lands