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 2423 LANDED 12:02 PM PT, ~8 MIN LATE · SCHEDULED TIME UNKNOWN

UA 2423 · PHX → SNA

took off 11:09 AM MT · landed 12:02 PM PT (scheduled time unknown)
Forecast issued Wed 10:00 PM ET · 8h after departure

Odds over time

Arrive at SNA more than 15 minutes late?
28% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 10% 20% 30% 40% 2h Departs Lands