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 256 LANDED 2:16 PM PT, ~4 MIN LATE · SCHEDULED TIME UNKNOWN
Today

AS 256 · BOS → SAN

took off 11:43 AM ET · landed 2:16 PM PT (scheduled time unknown)
Forecast issued Tue 5:00 PM ET · 5h after departure

Odds over time

Arrive at SAN more than 15 minutes late?
24% chance · ±1 pts +3 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% 2.8d 2d 1d 12h 6h Departs Lands