Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 1550 SCHEDULED · TYPICAL SCHEDULE

Friday, October 2

UA 1550 · DTW → SFO

departs 6:34 AM ET · arrives 8:40 AM PT

Forecast issued Fri 10:00 PM ET · 15h after departure

Arrive at SFO more than 15 minutes late?

19% chance · ±0 pts −16 pts · 24h

HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.

How late will it get to SFO?

On time or early
80%
15–30 min late
8%
30 min–1 hour late
6%
1–2 hours late
2%
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

↑ Gusts to 27 kt, cloud base down to 1,200 ft, visibility down to 1.5 mi, 2.7 in of rain forecast at DTW that day

↑ SFO is prone to delays

↑ This flight has been late 29% of the time recently

↓ Early flights usually leave on time

↓ DTW usually runs smoothly

Weather at each end

DTW (origin) Gusts28 kt Ceiling800 ft Visibility1.75 mi Precip1.43 in

SFO (destination) Gusts10 kt Ceiling300 ft Visibility3 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 1550 · DTW → SFO

Odds over time

How late will it get to SFO?