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 2391SCHEDULED · TYPICAL SCHEDULE
Tomorrow
UA 2391 · DEN → SFO
departs 7:40 AM MT · arrives 9:18 AM PT
Forecast issued Fri 1:00 PM ET · 21h before departure
Odds over time
Arrive at SFO more than 15 minutes late?
14%chance · ±0 pts−1 pt · 24h
HOW SURE WE AREGood. The odds now lean mostly on firmed-up weather forecasts.
How late will it get to SFO?
On time or early
85%
15–30 min late
8%
30 min–1 hour late
2%
1–2 hours late
3%
Over 2 hours late
1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.