About 1 in 3 DL 4290 flights from Detroit arrived 15+ minutes late, diverted or cancelled over the past year (32%); 2.7% were cancelled. The typical flight landed 6 minutes early.
DL 4290: DTW → IMT
Scheduled to leave Detroit at 10:00 a.m. local time, operated by SkyWest as OO 4290. Over the past year it arrived on time 68% of the time (365 flights), in line with other DL flights on the route at that hour (68%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 62% |
| Tuesday | 52 | 62% |
| Wednesday | 52 | 73% |
| Thursday | 52 | 77% |
| Friday | 52 | 67% |
| Saturday | 52 | 69% |
| Sunday | 52 | 69% |
Why it was late
All flights DTW → IMT · Connecting off DL 4290? Check the risk
Questions
How often is DL 4290 from DTW to IMT late?
Delta Air Lines 4290 from Detroit, MI to Iron Mountain/Kingsfd, MI arrived 15 or more minutes late, was diverted or was cancelled on 32% of 365 scheduled flights between September 2025 and August 2026. 2.7% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.