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 9451 LANDED 1:57 PM PT, ~19 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

AS 9451 · GSO → SEA

took off 11:34 AM ET · landed 1:57 PM 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?
21% 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% 20h 12h 6h Departs Lands