Flight OddsGRR → DTW Delta Air Lines
Delta Air Lines · Grand Rapids, MI to Detroit, MI · 2,345 flights, 2025-07-01 to 2026-06-30 · aggregated across 84 flight numbers
On-time arrival
79%
Median delay
-10 min
90th percentile
+67 min
Cancellation rate
1%
How on-time is Delta Air Lines from GRR to DTW?
Across every Delta Air Lines flight number on GRR → DTW (2,345 flights, 2025-07-01 to 2026-06-30), 79% arrived within 15 minutes of schedule. Median arrival delay -10 min; the worst 10% ran +67 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,832 | 79% |
| 16-30 min | 111 | 5% |
| 31-60 min | 131 | 6% |
| 61-120 min | 116 | 5% |
| 2+ hrs | 132 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 232 | 79% | +12 min |
| 2025-08 | 212 | 83% | +2 min |
| 2025-09 | 197 | 92% | -6 min |
| 2025-10 | 207 | 90% | -5 min |
| 2025-11 | 192 | 82% | +11 min |
| 2025-12 | 173 | 50% | +48 min |
| 2026-01 | 169 | 58% | +46 min |
| 2026-02 | 161 | 76% | +10 min |
| 2026-03 | 176 | 67% | +31 min |
| 2026-04 | 192 | 84% | +7 min |
| 2026-05 | 210 | 90% | -1 min |
| 2026-06 | 201 | 87% | 0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 339 | 76% |
| Tue | 347 | 78% |
| Wed | 339 | 79% |
| Thu | 340 | 82% |
| Fri | 332 | 77% |
| Sat | 290 | 85% |
| Sun | 335 | 76% |
DL flight numbers on GRR → DTW
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…