Schedule: the flights that flew on Tuesday, Sep 29, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALASKA · FLIGHT AS 578SCHEDULED · TYPICAL SCHEDULE
AS 578 · SMF → PDX
departs 8:00 AM PT · arrives 9:44 AM PT
Forecast issued Sun 5:00 AM ET · 54h before departure
Odds over time
Arrive at PDX more than 15 minutes late?
10%chance · ±1 pts– · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to PDX?
On time or early
90%
15–30 min late
5%
30 min–1 hour late
3%
1–2 hours late
1%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.