Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 1231SCHEDULED · TYPICAL SCHEDULE
Tomorrow
UA 1231 · ORD → IAH
departs 7:35 AM CT · arrives 10:36 AM CT
Forecast issued Fri 11:00 PM ET · 10h before departure
Odds over time
Arrive at IAH more than 15 minutes late?
14%chance · ±0 pts+0 pts · 24h
HOW SURE WE AREGood. The odds now lean mostly on firmed-up weather forecasts.
How late will it get to IAH?
On time or early
86%
15–30 min late
8%
30 min–1 hour late
1%
1–2 hours late
3%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.