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 2011 LANDED 6:52 AM PT, ~15 MIN LATE · SCHEDULED TIME UNKNOWN
Today

QX 2011 · YVR → SEA

took off 6:19 AM PDT · landed 6:52 AM PT (scheduled time unknown)
Forecast issued Wed 11:00 AM ET · 2h after departure

Odds over time

Arrive at SEA more than 15 minutes late?
14% 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% 10% 20% 30% 40% 1.1d 12h 6h Departs Now