Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
UNITED · FLIGHT UA 2124SCHEDULED · TYPICAL SCHEDULE
UA 2124 · IAH → ORD
departs 9:35 AM CT · arrives 12:29 PM CT
Forecast issued Thu 5:00 PM ET · 42h before departure
Odds over time
Arrive at ORD more than 15 minutes late?
14%chance · ±0 pts−2 pts · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to ORD?
On time or early
85%
15–30 min late
4%
30 min–1 hour late
5%
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%.