Flight OddsDL4637 BHM → DTW
Delta Air Lines · Birmingham, AL to Detroit, MI · 25 flights observed, 2026-05-07 to 2026-06-05 · 625 mi
DL4637 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
76%
Median delay
+7 min
90th percentile
+43 min
Cancellation rate
0%
How often is DL4637 on time?
Across 25 flights on BHM → DTW from 2026-05-07 to 2026-06-05, DL4637 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +43 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 | 19 | 76% |
| 16-30 min | 2 | 8% |
| 31-60 min | 2 | 8% |
| 61-120 min | 2 | 8% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 20 | 75% | +11 min |
| 2026-06 | 5 | 80% | +5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | 4 | 75% |
| Wed | 4 | 100% |
| Thu | 5 | 100% |
| Fri | 5 | 20% |
| Sat | No data | — |
| Sun | 3 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…