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 1751 LANDED 10:42 PM MT, ~13 MIN LATE · SCHEDULED TIME UNKNOWN

AS 1751 · SEA → BOI

took off 8:44 PM PT · landed 10:42 PM MT (scheduled time unknown)
Forecast issued Fri 10:00 PM ET · 2h before departure

Odds over time

Arrive at BOI more than 15 minutes late?
55% chance · ±0 pts – · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
LIVE IN THE AIR 0% 20% 40% 60% 80% 3h Now Departs Lands