Schedule: the flights that flew on Friday, Oct 23, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

ALASKA · FLIGHT AS 39 SCHEDULED · TYPICAL SCHEDULE

Friday, October 30

AS 39 · JFK → SFO

departs 7:01 PM ET · arrives 9:54 PM PT

Forecast issued Wed 8:00 AM ET · 59h before departure

Arrive at SFO more than 15 minutes late?

41% chance · ±8 pts – · 24h

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

How late will it get to SFO?

On time or early
58%
15–30 min late
19%
30 min–1 hour late
12%
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%.

What’s moving the odds

↑ Arrivals into SFO at that hour are often late

↑ 7pm departures from JFK are often late

↑ Later flights pick up delays from earlier in the day

↓ Mostly benign weather forecast at JFK

↓ Mostly benign weather forecast at SFO

Weather at each end

JFK (origin) Gusts19 kt Ceilingnone (clear) Visibility10+ mi Precipnone

SFO (destination) Gusts18 kt Ceilingnone (clear) Visibility10+ mi Precipnone

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 39 · JFK → SFO

Odds over time

How late will it get to SFO?