Schedule: the flights that flew on Tuesday, Sep 29, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
AMERICAN · FLIGHT AA 856SCHEDULED · TYPICAL SCHEDULE
AA 856 · BUF → ORD
departs 6:46 PM ET · arrives 7:37 PM CT
Forecast issued Sun 10:00 AM ET · 57h before departure
Odds over time
Arrive at ORD more than 15 minutes late?
19%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
81%
15–30 min late
13%
30 min–1 hour late
2%
1–2 hours late
1%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.