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 1531SCHEDULED · TYPICAL SCHEDULE
Tomorrow
UA 1531 · MSP → ORD
departs 3:16 PM CT · arrives 4:58 PM CT
Forecast issued Fri 2:00 AM ET · 38h before departure
Odds over time
Arrive at ORD more than 15 minutes late?
20%chance · ±2 pts+5 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
79%
15–30 min late
9%
30 min–1 hour late
6%
1–2 hours late
2%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.