Detroit (DTW) to Iron Mountain/Kingsfd (IMT): On-Time Performance
Data through July 2026
When you fly DTW to IMT matters as much as anything else about the booking: the route swung from 94% on-time in October 2024 to just 45% in December 2025. Across the full period the route averages 75% on-time against a national 78%.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 29 min
- completed flights
- Cancelled
- 2.0%
- Flights/day
- 1.0
- last 12 months
- Duration
- 1h 30m
- scheduled
- Distance
- 344 mi
Monthly on-time trend
Best time to fly from DTW to IMT
Aim for departures around 9 p.m. (93% on-time); avoid 8 a.m. departures (69%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 74% | 34 min |
| Tuesday | 78% | 32 min |
| Wednesday | 77% | 24 min |
| Thursdaybest | 79% | 22 min |
| Friday | 75% | 28 min |
| Saturday | 73% | 28 min |
| Sunday | 73% | 33 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Airline operations74%
- National airspace system3%
- Weather23%
Frequently asked questions
- How often are flights from DTW to IMT delayed?
- 25% of DTW–IMT 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 29 minutes.
- What is the best time of day to fly from DTW to IMT?
- Departures around 9 p.m. have the best record (93% on-time), while departures around 8 a.m. have the worst (69%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DTW to IMT?
- The scheduled DTW–IMT flight time averages 1h 30m over 344 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are DTW to IMT flights cancelled?
- 2% 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 DTW to IMT?
- December 2025 was the roughest month in this dataset, with only 45% of arrivals on time. The best was October 2024 at 94%. If your dates are flexible, that 49-point gap is worth planning around.
Explore related pages
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Related guides
Based on 760 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.