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.
AMERICAN · FLIGHT AA 2639SCHEDULED · TYPICAL SCHEDULE
AA 2639 · ONT → PHX
departs 7:15 PM PT · arrives 8:36 PM MT
Forecast issued Fri 7:00 AM ET · 63h before departure
Odds over time
Arrive at PHX more than 15 minutes late?
20%chance · ±2 pts– · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to PHX?
On time or early
79%
15–30 min late
7%
30 min–1 hour late
3%
1–2 hours late
7%
Over 2 hours late
4%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.