Schedule: a typical summer Friday (the flights of Jul 31, 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
UA 1451 · DEN → JAX
departs 10:05 AM MT · arrives 3:39 PM ET
Forecast issued Fri 10:00 PM ET · 10h after departure
Odds over time
Arrive at JAX more than 15 minutes late?
16%chance · ±0 pts+3 pts · 24h
HOW SURE WE AREVery high. The odds now come almost entirely from live conditions.
How late will it get to JAX?
On time or early
83%
15–30 min late
2%
30 min–1 hour late
9%
1–2 hours late
3%
Over 2 hours late
2%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.