Historical on-time performance
Iron Mountain to Detroit
344 miData through May 2026Source: US DOT · BTS
Flights on IMT–DTW arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled3.9%of scheduled flights
based on 337 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time75%Medianon timep9070 minCancel3.9%Flights337
Why flights run late
Delay causes
- Airline69%
- Weather23%
- Air traffic (NAS)8%
- Late aircraft0%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 13 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly IMT → DTW
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 76% to 81% on time.
- Mornings81% on time · p90 65 min · 242 flights
- Afternoons77% on time · p90 70 min · 259 flights
- Evenings76% on time · p90 70 min · 477 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 82% on time.
- Tuesdays82% on time · p90 25 min · 152 flights · limited
- Saturdays81% on time · p90 30 min · 153 flights · limited
- Thursdays80% on time · p90 65 min · 154 flights · limited
- Mondays80% on time · p90 85 min · 153 flights · limited
- Fridays77% on time · p90 90 min · 153 flights · limited
- Wednesdays75% on time · p90 55 min · 153 flights · limited
- Sundays70% on time · p90 110 min · 154 flights · limited
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