Schedule: the flights that flew on Wednesday, Oct 21, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 1931SCHEDULED · TYPICAL SCHEDULE
Tomorrow
UA 1931 · SJD → SFO
departs 1:03 PM MST · arrives 4:15 PM PT
Forecast issued Tue 8:00 AM ET · 32h before departure
Odds over time
Arrive at SFO more than 15 minutes late?
24%chance · ±3 pts+0 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
75%
15–30 min late
7%
30 min–1 hour late
9%
1–2 hours late
4%
Over 2 hours late
4%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.