About 1 in 5 DL 5259 flights from Detroit arrived 15+ minutes late, diverted or cancelled over the past year (18%); 0.6% were cancelled. The typical flight landed 12 minutes early.
DL 5259: DTW → CVG
Scheduled to leave Detroit at 8:30 a.m. local time, operated by Endeavor Air as 9E 5259. Over the past year it arrived on time 82% of the time (318 flights), in line with other DL flights on the route at that hour (83%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 47 | 79% |
| Tuesday | 46 | 83% |
| Wednesday | 46 | 80% |
| Thursday | 45 | 84% |
| Friday | 45 | 82% |
| Saturday | 44 | 86% |
| Sunday | 45 | 78% |
Why it was late
All flights DTW → CVG · Connecting off DL 5259? Check the risk
Questions
How often is DL 5259 from DTW to CVG late?
Delta Air Lines 5259 from Detroit, MI to Cincinnati, OH arrived 15 or more minutes late, was diverted or was cancelled on 18% of 318 scheduled flights between September 2025 and August 2026. 0.6% 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.