Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
AMERICAN · FLIGHT AA 2421SCHEDULED · TYPICAL SCHEDULE
Tomorrow
AA 2421 · DFW → DSM
departs 2:08 PM CT · arrives 4:00 PM CT
Forecast issued Sun 1:00 PM ET · 26h before departure
Odds over time
Arrive at DSM more than 15 minutes late?
33%chance · ±4 pts+5 pts · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to DSM?
On time or early
66%
15–30 min late
13%
30 min–1 hour late
10%
1–2 hours late
7%
Over 2 hours late
3%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.