Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
ALASKA · FLIGHT AS 389SCHEDULED · TYPICAL SCHEDULE
Tomorrow
AS 389 · BOS → SAN
departs 4:33 PM ET · arrives 7:53 PM PT
Forecast issued Wed 10:00 AM ET · 31h before departure
Odds over time
Arrive at SAN more than 15 minutes late?
37%chance · ±5 pts+7 pts · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to SAN?
On time or early
63%
15–30 min late
19%
30 min–1 hour late
12%
1–2 hours late
4%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.