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 2166 LANDED 8:18 AM PT, ~22 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

QX 2166 · BOI → SAN

took off 7:28 AM MT · landed 8:18 AM PT (scheduled time unknown)
Forecast issued Wed 6:00 PM ET · 8h after departure

Odds over time

Arrive at SAN more than 15 minutes late?
16% chance · ±0 pts +8 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 5% 10% 15% 20% 1.1d 12h 6h Departs Lands