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.

SKYWEST · FLIGHT OO 6351 LANDED 6:35 PM MT, ~3 MIN EARLY · SCHEDULED TIME UNKNOWN
Yesterday

OO 6351 · DEN → PHX

took off 5:48 PM MT · landed 6:35 PM MT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 2h after departure

Odds over time

Arrive at PHX more than 15 minutes late?
46% chance · ±0 pts −2 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 20% 40% 60% 80% 1.1d 12h 6h Departs Lands