Flight OddsDL4817 BHM → DTW
Delta Air Lines · Birmingham, AL to Detroit, MI · 130 flights observed, 2025-08-11 to 2025-12-19 · 625 mi
DL4817 covers more than one route in the data window — the stats below are for BHM → DTW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
92%
Median delay
-10 min
90th percentile
+10 min
Cancellation rate
3%
How often is DL4817 on time?
Across 130 flights on BHM → DTW from 2025-08-11 to 2025-12-19, DL4817 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +10 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 116 | 92% |
| 16-30 min | 2 | 2% |
| 31-60 min | 2 | 2% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 6 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 21 | 86% | +12 min |
| 2025-09 | 30 | 90% | +9 min |
| 2025-10 | 31 | 94% | -9 min |
| 2025-11 | 27 | 96% | -9 min |
| 2025-12 | 17 | 94% | +5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 17 | 100% |
| Tue | 19 | 89% |
| Wed | 19 | 95% |
| Thu | 19 | 84% |
| Fri | 18 | 100% |
| Sat | 18 | 94% |
| Sun | 16 | 81% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…