Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
AMERICAN · FLIGHT AA 1238SCHEDULED · TYPICAL SCHEDULE
Yesterday
AA 1238 · PHX → ONT
departs 8:30 PM MT · arrives 9:43 PM PT
Forecast issued Wed 10:00 PM ET · 2h before departure
Odds over time
Arrive at ONT more than 15 minutes late?
60%chance · ±0 pts+23 pts · 24h
HOW SURE WE AREHigh. The odds now come mostly from live FAA and airport data.
How late will it get to ONT?
On time or early
40%
15–30 min late
42%
30 min–1 hour late
4%
1–2 hours late
10%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.