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 2209 LANDED 10:06 PM PT, ~7 MIN LATE · SCHEDULED TIME UNKNOWN

UA 2209 · IAD → LAS

took off 8:48 PM ET · landed 10:06 PM PT (scheduled time unknown)
Forecast issued Fri 10:00 PM ET · 1h after departure

Odds over time

Arrive at LAS more than 15 minutes late?
41% chance · ±1 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 15% 30% 45% 60% 1h Departs Lands