Historical on-time performance
Miami to Des Moines
1,327 miData through Dec 2025Source: US DOT · BTS
Flights on MIA–DSM arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled3.2%of scheduled flights
based on 93 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Envoy AirOn-time82%Medianon timep9030 minCancel3.2%Flights93
Why flights run late
Delay causes
- Airline22%
- Weather0%
- Air traffic (NAS)43%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MIA → DSM
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 76% to 79% on time.
- Evenings79% on time · p90 35 min · 127 flights · limited
- Overnights76% on time · p90 35 min · 298 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 87% on time.
- Tuesdays87% on time · p90 15 min · 53 flights · limited
- Mondays87% on time · p90 25 min · 53 flights · limited
- Fridays80% on time · p90 30 min · 50 flights · limited
- Saturdays73% on time · p90 45 min · 119 flights · limited
- Wednesdays72% on time · p90 35 min · 53 flights · limited
- Sundays71% on time · p90 50 min · 52 flights · limited
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