Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 660SCHEDULED · TYPICAL SCHEDULE
Tomorrow
UA 660 · ORD → SAN
departs 8:46 AM CT · arrives 11:21 AM PT
Forecast issued Fri 3:00 AM ET · 31h before departure
Odds over time
Arrive at SAN more than 15 minutes late?
10%chance · ±1 pts+0 pts · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to SAN?
On time or early
90%
15–30 min late
4%
30 min–1 hour late
3%
1–2 hours late
2%
Over 2 hours late
1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.