Flight OddsDL1537 DTW → STL
Delta Air Lines · Detroit, MI to St. Louis, MO · 141 flights observed, 2025-07-04 to 2025-12-19 · 440 mi
DL1537 covers more than one route in the data window — the stats below are for DTW → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
77%
Median delay
-11 min
90th percentile
+48 min
Cancellation rate
0%
How often is DL1537 on time?
Across 141 flights on DTW → STL from 2025-07-04 to 2025-12-19, DL1537 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +48 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 | 108 | 77% |
| 16-30 min | 10 | 7% |
| 31-60 min | 13 | 9% |
| 61-120 min | 6 | 4% |
| 2+ hrs | 4 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 23 | 78% | +7 min |
| 2025-08 | 25 | 84% | -1 min |
| 2025-09 | 21 | 90% | -6 min |
| 2025-10 | 25 | 72% | +14 min |
| 2025-11 | 28 | 71% | +5 min |
| 2025-12 | 19 | 63% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 58% |
| Tue | 24 | 83% |
| Wed | 24 | 88% |
| Thu | 24 | 92% |
| Fri | 19 | 63% |
| Sat | 9 | 78% |
| Sun | 17 | 71% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…