Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
UNITED · FLIGHT UA 430SCHEDULED · TYPICAL SCHEDULE
UA 430 · DEN → ONT
departs 11:25 AM MT · arrives 12:47 PM PT
Forecast issued Thu 5:00 PM ET · 44h before departure
Odds over time
Arrive at ONT more than 15 minutes late?
11%chance · ±1 pts+1 pt · 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
89%
15–30 min late
4%
30 min–1 hour late
3%
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%.