Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 1375SCHEDULED · TYPICAL SCHEDULE
UA 1375 · ONT → SFO
departs 1:50 PM PT · arrives 3:15 PM PT
Forecast issued Sat 12:00 PM ET · 53h before departure
Odds over time
Arrive at SFO more than 15 minutes late?
15%chance · ±1 pts– · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to SFO?
On time or early
85%
15–30 min late
4%
30 min–1 hour late
3%
1–2 hours late
5%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.