Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 661SCHEDULED · TYPICAL SCHEDULE
UA 661 · EWR → ORD
departs 4:45 PM ET · arrives 6:34 PM CT
Forecast issued Fri 2:00 AM ET · 63h before departure
Odds over time
Arrive at ORD more than 15 minutes late?
35%chance · ±3 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
64%
15–30 min late
14%
30 min–1 hour late
9%
1–2 hours late
6%
Over 2 hours late
5%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.