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 1259SCHEDULED · TYPICAL SCHEDULE
Tomorrow
UA 1259 · SFO → IAH
departs 10:50 AM PT · arrives 4:52 PM CT
Forecast issued Fri 3:00 AM ET · 35h before departure
Odds over time
Arrive at IAH more than 15 minutes late?
19%chance · ±1 pts−3 pts · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to IAH?
On time or early
80%
15–30 min late
11%
30 min–1 hour late
4%
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%.