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.

SKYWEST · FLIGHT OO 3968 LANDED 7:27 PM PT, ~4 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

OO 3968 · YVR → SEA

took off 6:46 PM PDT · landed 7:27 PM PT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 0h before departure

Odds over time

Arrive at SEA more than 15 minutes late?
47% chance · ±1 pts +1 pt · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 20% 40% 60% 80% 1.0d 12h 6h Departs Lands