Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 1615SCHEDULED · TYPICAL SCHEDULE
UA 1615 · PHX → DEN
departs 1:31 PM MT · arrives 4:27 PM MT
Forecast issued Sat 12:00 AM ET · 40h before departure
Odds over time
Arrive at DEN more than 15 minutes late?
14%chance · ±3 pts−3 pts · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to DEN?
On time or early
85%
15–30 min late
6%
30 min–1 hour late
2%
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%.