Schedule: the flights that flew on Wednesday, Oct 21, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

ALASKA · FLIGHT AS 580 SCHEDULED · TYPICAL SCHEDULE

Wednesday, October 28

AS 580 · SFO → SEA

departs 10:58 AM PT · arrives 12:55 PM PT

Forecast issued Tue 1:00 AM ET · 37h before departure

Arrive at SEA more than 15 minutes late?

41% chance · ±1 pts −2 pts · 24h

HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.

How late will it get to SEA?

On time or early
58%
15–30 min late
22%
30 min–1 hour late
13%
1–2 hours late
4%
Over 2 hours late
<1%
Cancelled
1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.

What’s moving the odds

↑ 10am departures from SFO are often late

↑ This flight has been late 20% of the time recently

↑ SFO is prone to delays

↓ Mostly benign weather forecast at SFO

↓ Wednesdays in October are usually quieter than average

Weather at each end

SFO (origin) Gusts13 kt Ceilingnone (clear) Visibility10+ mi Precipnone

SEA (destination) Gusts20 kt Ceiling1,500 ft Visibility6 mi Precip0.07 in

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

AS 580 · SFO → SEA

Odds over time

How late will it get to SEA?