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.

UNITED · FLIGHT UA 1627 LANDED 10:17 AM PT, ~12 MIN LATE · SCHEDULED TIME UNKNOWN

UA 1627 · SFO → LAS

took off 8:59 AM PT · landed 10:17 AM PT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 10h after departure

Odds over time

Arrive at LAS more than 15 minutes late?
44% chance · ±0 pts +16 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% 16h 12h 6h Departs Lands