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 277 LANDED 2:42 PM MT, ~3 MIN LATE · SCHEDULED TIME UNKNOWN
Today

AS 277 · SEA → BZN

took off 12:38 PM PT · landed 2:42 PM MT (scheduled time unknown)
Forecast issued Tue 3:00 PM ET · 1h before departure

Odds over time

Arrive at BZN more than 15 minutes late?
24% chance · ±1 pts −6 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% 1.0d 12h 6h Now Departs Lands