Flight OddsDL4858 MDW → DTW
Delta Air Lines · Chicago, IL to Detroit, MI · 41 flights observed, 2025-11-09 to 2025-12-19 · 228 mi
DL4858 covers more than one route in the data window — the stats below are for MDW → DTW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
66%
Median delay
-10 min
90th percentile
+89 min
Cancellation rate
0%
How often is DL4858 on time?
Across 41 flights on MDW → DTW from 2025-11-09 to 2025-12-19, DL4858 arrived within 15 minutes of schedule 66% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +89 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 27 | 66% |
| 16-30 min | 4 | 10% |
| 31-60 min | 3 | 7% |
| 61-120 min | 4 | 10% |
| 2+ hrs | 3 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 22 | 77% | 0 min |
| 2025-12 | 19 | 53% | +37 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 50% |
| Tue | 6 | 83% |
| Wed | 6 | 67% |
| Thu | 6 | 83% |
| Fri | 6 | 67% |
| Sat | 5 | 60% |
| Sun | 6 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…