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 623SCHEDULED · TYPICAL SCHEDULE
UA 623 · LGA → ORD
departs 8:05 AM ET · arrives 9:44 AM CT
Forecast issued Thu 7:00 AM ET · 49h before departure
Odds over time
Arrive at ORD more than 15 minutes late?
9%chance · ±2 pts−1 pt · 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
90%
15–30 min late
5%
30 min–1 hour late
2%
1–2 hours late
1%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.