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 630 IN THE AIR (OFF 3:39 PM PT, ETA 5:14 PM PT) · SCHEDULED TIME UNKNOWN
Today

AS 630 · SFO → SEA

took off 3:39 PM PT · expected to land 5:14 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?
56% chance · ±0 pts +8 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% 20% 40% 60% 80% 3.0d 2d 1d 12h 6h Now Departs Lands