Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALASKA · FLIGHT AS 423SCHEDULED · TYPICAL SCHEDULE
Yesterday
AS 423 · BOI → SEA
departs 6:23 AM MT · arrives 7:00 AM PT
Forecast issued Thu 10:00 PM ET · 14h after departure
Odds over time
Arrive at SEA more than 15 minutes late?
8%chance · ±0 pts−4 pts · 24h
HOW SURE WE AREVery high. The odds now come almost entirely from live conditions.
How late will it get to SEA?
On time or early
92%
15–30 min late
5%
30 min–1 hour late
2%
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%.