Miami (MIA) to Des Moines (DSM): On-Time Performance
Data through May 2026
Miami (MIA) to Des Moines (DSM) is a thinner route than most in this dataset — 177 departures over the past year, roughly 3 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 80% arrived on time.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 2.6%
- Flights/day
- 0.48
- last 12 months
- Duration
- 3h 49m
- scheduled
- Distance
- 1,327 mi
Monthly on-time trend
Best time to fly from MIA to DSM
Departure time makes little difference on this route — on-time rates stay within a few points across the day.
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 89% | 9 min |
| Tuesdaybest | 89% | 6 min |
| Wednesday | 82% | 7 min |
| Thursday | 82% | 9 min |
| Friday | 79% | 10 min |
| Saturday | 73% | 13 min |
| Sunday | 73% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft31%
- Airline operations30%
- National airspace system33%
- Weather5%
Frequently asked questions
- How often are flights from MIA to DSM delayed?
- 20% of MIA–DSM flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 10 minutes.
- What is the best time of day to fly from MIA to DSM?
- Departures around 7 p.m. have the best record (81% on-time), while departures around 8 p.m. have the worst (79%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MIA to DSM?
- The scheduled MIA–DSM flight time averages 3h 49m over 1,327 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are MIA to DSM flights cancelled?
- 2.6% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What day of the week is most reliable for MIA to DSM?
- Monday flights have the best record at 89% on-time. Day-of-week differences on this route are meaningful — Saturday trails at 73%.
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Based on 344 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.