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 1221SCHEDULED · TYPICAL SCHEDULE
AA 1221 · DCA → ORD
departs 2:51 PM ET · arrives 3:55 PM CT
Forecast issued Sat 5:00 PM ET · 70h before departure
Odds over time
Arrive at ORD more than 15 minutes late?
11%chance · ±2 pts−12 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
88%
15–30 min late
4%
30 min–1 hour late
3%
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%.