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 1238SCHEDULED · TYPICAL SCHEDULE
UA 1238 · IAH → PHX
departs 2:20 PM CT · arrives 3:07 PM MT
Forecast issued Fri 9:00 AM ET · 54h before departure
Odds over time
Arrive at PHX more than 15 minutes late?
22%chance · ±3 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
77%
15–30 min late
3%
30 min–1 hour late
8%
1–2 hours late
6%
Over 2 hours late
4%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.