Schedule: the flights that flew on Wednesday, Nov 4, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALASKA · FLIGHT AS 557SCHEDULED · TYPICAL SCHEDULE
AS 557 · SEA → MSO
departs 6:49 PM PT · arrives 9:12 PM MT
Forecast issued Mon 1:00 AM ET · 69h before departure
Odds over time
Arrive at MSO more than 15 minutes late?
25%chance · ±4 pts– · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to MSO?
On time or early
75%
15–30 min late
16%
30 min–1 hour late
4%
1–2 hours late
3%
Over 2 hours late
1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.