Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 1451SCHEDULED · TYPICAL SCHEDULE
Tomorrow
UA 1451 · DEN → JAX
departs 10:05 AM MT · arrives 3:39 PM ET
Forecast issued Sun 5:00 AM ET · 31h before departure
Odds over time
Arrive at JAX more than 15 minutes late?
13%chance · ±4 pts+0 pts · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to JAX?
On time or early
86%
15–30 min late
5%
30 min–1 hour late
4%
1–2 hours late
2%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.