Schedule: the flights that flew on Wednesday, Sep 30, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
AMERICAN · FLIGHT AA 1277SCHEDULED · TYPICAL SCHEDULE
AA 1277 · DEN → ORD
departs 3:21 PM MT · arrives 6:54 PM CT
Forecast issued Mon 9:00 AM ET · 56h before departure
Odds over time
Arrive at ORD more than 15 minutes late?
20%chance · ±2 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
11%
30 min–1 hour late
5%
1–2 hours late
3%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.