Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 1609 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4 Tomorrow

UA 1609 · IAH → SFO

departs 9:59 PM CT · arrives 12:05 AM PT

Forecast issued Sat 10:00 AM ET · 37h before departure

Arrive at SFO more than 15 minutes late?

24% chance · ±4 pts +3 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
76%
15–30 min late
5%
30 min–1 hour late
13%
1–2 hours late
3%
Over 2 hours late
3%
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

↑ Later flights pick up delays from earlier in the day

↑ SFO is prone to delays

↓ Mostly benign weather forecast at SFO

↓ Sundays in October are usually quieter than average

Weather at each end

IAH (origin) Gusts20 kt Ceiling600 ft Visibility3 mi Precip0.13 in

SFO (destination) Gusts12 kt Ceilingnone (clear) Visibility8 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.

UA 1609 · IAH → SFO

Odds over time

How late will it get to SFO?