Miami (MIA) to Des Moines (DSM): On-Time Performance
Data through July 2026
Miami (MIA) to Des Moines (DSM) is a thinner route than most in this dataset — 180 departures over the past year, roughly 3 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 79% arrived on time. Cancellations are the bigger caveat: 3.1% of scheduled flights never departed.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 3.1%
- Flights/day
- 0.49
- 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 | 87% | 9 min |
| Tuesdaybest | 87% | 7 min |
| Wednesday | 82% | 7 min |
| Thursday | 82% | 9 min |
| Friday | 79% | 10 min |
| Saturday | 72% | 14 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 aircraft32%
- Airline operations30%
- National airspace system33%
- Weather5%
Frequently asked questions
- How often are flights from MIA to DSM delayed?
- 21% of MIA–DSM flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 11 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 (77%). 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 21% of the time.
- How often are MIA to DSM flights cancelled?
- 3.1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07 — several times the typical US rate, so consider earlier departures or backup options.
- What day of the week is most reliable for MIA to DSM?
- Monday flights have the best record at 87% on-time. Day-of-week differences on this route are meaningful — Saturday trails at 72%.
Explore related pages
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Related guides
Based on 350 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.