Flight OddsDL3865 GRR → DTW
Delta Air Lines · Grand Rapids, MI to Detroit, MI · 162 flights observed, 2025-07-01 to 2025-12-19 · 120 mi
DL3865 covers more than one route in the data window — the stats below are for GRR → DTW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
80%
Median delay
-10 min
90th percentile
+99 min
Cancellation rate
1%
How often is DL3865 on time?
Across 162 flights on GRR → DTW from 2025-07-01 to 2025-12-19, DL3865 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +99 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 128 | 80% |
| 16-30 min | 8 | 5% |
| 31-60 min | 6 | 4% |
| 61-120 min | 6 | 4% |
| 2+ hrs | 13 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 27 | 78% | +23 min |
| 2025-08 | 27 | 89% | -2 min |
| 2025-09 | 30 | 93% | -5 min |
| 2025-10 | 30 | 80% | +6 min |
| 2025-11 | 28 | 82% | +12 min |
| 2025-12 | 19 | 42% | +45 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 23 | 65% |
| Tue | 25 | 76% |
| Wed | 25 | 80% |
| Thu | 24 | 83% |
| Fri | 23 | 78% |
| Sat | 18 | 89% |
| Sun | 23 | 87% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…