Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
ALASKA · FLIGHT AS 259SCHEDULED · TYPICAL ODDS
AS 259 · KOA → SEA
departs 9:19 PM HT · arrives 6:12 AM PT
Forecast issued Tue 6:00 PM ET · 105h before departure
Typical odds
Too early for a weather forecast — these are typical odds for this flight on a Saturday in October, from the weather this date has had in past years (the range shows how much they varied). They’ll switch to forecast-based odds about 3 days before departure.
Odds over time
Arrive at SEA more than 15 minutes late?
15%chance · ±3 pts+0 pts · 24h
HOW SURE WE ARELow. This is mostly a starting point from history; weather forecasts haven't kicked in yet.
How late will it get to SEA?
On time or early
84%
15–30 min late
6%
30 min–1 hour late
5%
1–2 hours late
3%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.