About 1 in 3 UA 1781 flights from Des Moines arrived 15+ minutes late, diverted or cancelled over the past year (35%); 0.0% were cancelled. The typical flight landed 3 minutes late.
UA 1781: DSM → DEN
Scheduled to leave Des Moines at 5:17 p.m. local time. Over the past year it arrived on time 65% of the time (262 flights), worse than other UA flights on the route at that hour (68%). Last seen in the data Aug 31, 2026.
Usually United Airlines's last flight of the day from Des Moines to Denver (100% of days). United Airlines's last DSM–DEN flight was cancelled 0.0% of the time, against 1.0% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 5:50 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 39 | 54% |
| Tuesday | 38 | 68% |
| Wednesday | 38 | 66% |
| Thursday | 36 | 64% |
| Friday | 37 | 65% |
| Saturday | 36 | 69% |
| Sunday | 38 | 71% |
Why it was late
All flights DSM → DEN · Connecting off UA 1781? Check the risk
Questions
How often is UA 1781 from DSM to DEN late?
United Airlines 1781 from Des Moines, IA to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 35% of 262 scheduled flights between September 2025 and August 2026. 0.0% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.