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.

ALASKA · FLIGHT AS 320 LANDED 9:28 AM PT, ~19 MIN LATE · SCHEDULED TIME UNKNOWN

AS 320 · GEG → SEA

took off 8:40 AM PT · landed 9:28 AM PT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 10h after departure

Odds over time

Arrive at SEA more than 15 minutes late?
37% chance · ±0 pts +0 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 18h 12h 6h Departs Lands