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 2145 IN THE AIR (OFF 3:42 PM PT, ETA 4:23 PM PT) · SCHEDULED TIME UNKNOWN
Today

QX 2145 · GEG → SEA

took off 3:42 PM PT · expected to land 4:23 PM PT (scheduled time unknown)
Forecast issued Tue 5:00 PM ET · 2h before departure

Odds over time

Arrive at SEA more than 15 minutes late?
44% chance · ±2 pts +12 pts · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 1.2d 1d 12h 6h Now Departs Lands