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 1943 LANDED 8:13 PM PT, ~4 MIN LATE · SCHEDULED TIME UNKNOWN

WN 1943 · SAN → LAS

took off 7:23 PM PT · landed 8:13 PM PT (scheduled time unknown)
Forecast issued Fri 10:00 PM ET · 0h before departure

Odds over time

Arrive at LAS more than 15 minutes late?
58% chance · ±2 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 20% 40% 60% 80% 1h Now Departs Lands