Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

UNITED · FLIGHT UA 1791 IN THE AIR (OFF 10:19 AM PT, ETA 11:27 AM PT) · SCHEDULED TIME UNKNOWN

Saturday, October 3 Today

UA 1791 · SAN → SFO

took off 10:19 AM PT · expected to land 11:27 AM PT (scheduled time unknown)

Forecast issued Sat 12:00 PM ET · 1h before departure

Arrive at SFO more than 15 minutes late?

35% chance · ±0 pts – · 24h

HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.

What’s moving the odds

↑ Arrivals into SFO at that hour are often late

↑ Other factors

↑ UA's recent on-time record

↓ Mostly benign weather forecast at SFO

↓ Mostly benign weather forecast at SAN

Weather at each end

SAN (origin) Gusts14 kt Ceilingnone (clear) Visibility8 mi Precipnone

SFO (destination) Gusts13 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.

UA 1791 · SAN → SFO

Odds over time