Flight OddsDL3156 ATL → STL
Delta Air Lines · Atlanta, GA to St. Louis, MO · 172 flights observed, 2025-07-01 to 2025-12-19 · 484 mi
DL3156 covers more than one route in the data window — the stats below are for ATL → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
87%
Median delay
-9 min
90th percentile
+27 min
Cancellation rate
0%
How often is DL3156 on time?
Across 172 flights on ATL → STL from 2025-07-01 to 2025-12-19, DL3156 arrived within 15 minutes of schedule 87% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +27 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 | 149 | 87% |
| 16-30 min | 10 | 6% |
| 31-60 min | 8 | 5% |
| 61-120 min | 4 | 2% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 87% | -5 min |
| 2025-08 | 31 | 100% | -9 min |
| 2025-09 | 30 | 93% | -7 min |
| 2025-10 | 31 | 87% | -3 min |
| 2025-11 | 30 | 80% | +4 min |
| 2025-12 | 19 | 63% | +22 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 79% |
| Tue | 25 | 92% |
| Wed | 25 | 96% |
| Thu | 25 | 92% |
| Fri | 25 | 92% |
| Sat | 24 | 88% |
| Sun | 24 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…