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.

HORIZON · FLIGHT QX 2163 LANDED 9:08 AM PT, ~27 MIN LATE · SCHEDULED TIME UNKNOWN

QX 2163 · GEG → LAX

took off 7:05 AM PT · landed 9:08 AM PT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 12h after departure

Odds over time

Arrive at LAX more than 15 minutes late?
16% chance · ±0 pts +2 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% 8h 6h Departs Lands