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 1883 LANDED 9:38 PM PT, ~7 MIN LATE · SCHEDULED TIME UNKNOWN

WN 1883 · SMF → LAS

took off 8:37 PM PT · landed 9:38 PM PT (scheduled time unknown)
Forecast issued Fri 10:00 PM ET · 2h before departure

Odds over time

Arrive at LAS more than 15 minutes late?
67% chance · ±0 pts – · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
LIVE IN THE AIR 0% 25% 50% 75% 100% 3h Now Departs Lands