Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 660SCHEDULED · TYPICAL SCHEDULE
Today
UA 660 · PHL → ORD
departs 6:00 AM ET · arrives 7:30 AM CT
Forecast issued Fri 1:00 AM ET · 5h before departure
Odds over time
Arrive at ORD more than 15 minutes late?
10%chance · ±0 pts+4 pts · 24h
HOW SURE WE AREHigh. The odds now come mostly from live FAA and airport data.
How late will it get to ORD?
On time or early
85%
15–30 min late
5%
30 min–1 hour late
<1%
1–2 hours late
2%
Over 2 hours late
2%
Cancelled
6%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.