Flight OddsDL4156 GRR → DTW
Delta Air Lines · Grand Rapids, MI to Detroit, MI · 38 flights observed, 2026-01-05 to 2026-02-11 · 120 mi
DL4156 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
61%
Median delay
+1 min
90th percentile
+198 min
Cancellation rate
0%
How often is DL4156 on time?
Across 38 flights on GRR → DTW from 2026-01-05 to 2026-02-11, DL4156 arrived within 15 minutes of schedule 61% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +198 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 | 23 | 61% |
| 16-30 min | 1 | 3% |
| 31-60 min | 4 | 11% |
| 61-120 min | 3 | 8% |
| 2+ hrs | 7 | 18% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 27 | 48% | +65 min |
| 2026-02 | 11 | 91% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 67% |
| Tue | 6 | 67% |
| Wed | 6 | 67% |
| Thu | 5 | 60% |
| Fri | 5 | 60% |
| Sat | 5 | 60% |
| Sun | 5 | 40% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…