Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 1839SCHEDULED · TYPICAL SCHEDULE
Tomorrow
UA 1839 · ORD → DSM
departs 9:29 PM CT · arrives 11:00 PM CT
Forecast issued Fri 10:00 PM ET · 24h before departure
Odds over time
Arrive at DSM more than 15 minutes late?
20%chance · ±4 pts+6 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
79%
15–30 min late
8%
30 min–1 hour late
4%
1–2 hours late
6%
Over 2 hours late
1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.