Iron Mountain/Kingsfd (IMT) to Detroit (DTW): On-Time Performance
Data through July 2026
When you fly IMT to DTW matters as much as anything else about the booking: the route swung from 100% on-time in September 2024 to just 55% in December 2024. Across the full period the route averages 79% on-time against a national 78%.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 27 min
- completed flights
- Cancelled
- 2.9%
- Flights/day
- 1.0
- last 12 months
- Duration
- 1h 23m
- scheduled
- Distance
- 344 mi
Monthly on-time trend
Best time to fly from IMT to DTW
Aim for departures around 2 p.m. (81% on-time); avoid 4 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 39 min |
| Tuesdaybest | 86% | 8 min |
| Wednesday | 72% | 28 min |
| Thursday | 79% | 34 min |
| Friday | 73% | 27 min |
| Saturdaybest | 86% | 11 min |
| Sunday | 74% | 43 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Airline operations73%
- National airspace system9%
- Weather19%
Frequently asked questions
- How often are flights from IMT to DTW delayed?
- 21% of IMT–DTW 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 27 minutes.
- What is the best time of day to fly from IMT to DTW?
- Departures around 2 p.m. have the best record (81% on-time), while departures around 4 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from IMT to DTW?
- The scheduled IMT–DTW flight time averages 1h 23m over 344 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are IMT to DTW flights cancelled?
- 2.9% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from IMT to DTW?
- December 2024 was the roughest month in this dataset, with only 55% of arrivals on time. The best was September 2024 at 100%. If your dates are flexible, that 45-point gap is worth planning around.
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Based on 760 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.