Schedule: the flights that flew on Saturday, Oct 24, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 552SCHEDULED · TYPICAL SCHEDULE
UA 552 · SFO → ONT
departs 9:20 PM PT · arrives 10:57 PM PT
Forecast issued Thu 7:00 PM ET · 53h before departure
Odds over time
Arrive at ONT more than 15 minutes late?
25%chance · ±2 pts– · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to ONT?
On time or early
74%
15–30 min late
2%
30 min–1 hour late
10%
1–2 hours late
9%
Over 2 hours late
4%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.