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 439SCHEDULED · TYPICAL SCHEDULE
Tomorrow
AS 439 · IAH → SEA
departs 2:38 PM CT · arrives 5:21 PM PT
Forecast issued Wed 4:00 AM ET · 36h before departure
Odds over time
Arrive at SEA more than 15 minutes late?
35%chance · ±4 pts−3 pts · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to SEA?
On time or early
64%
15–30 min late
10%
30 min–1 hour late
14%
1–2 hours late
5%
Over 2 hours late
5%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.