Flight OddsDL3156 STL → ATL
Delta Air Lines · St. Louis, MO to Atlanta, GA · 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 STL → ATL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
-14 min
90th percentile
+32 min
Cancellation rate
0%
How often is DL3156 on time?
Across 172 flights on STL → ATL from 2025-07-01 to 2025-12-19, DL3156 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +32 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 | 142 | 83% |
| 16-30 min | 10 | 6% |
| 31-60 min | 8 | 5% |
| 61-120 min | 8 | 5% |
| 2+ hrs | 3 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 87% | -4 min |
| 2025-08 | 31 | 94% | -7 min |
| 2025-09 | 30 | 90% | -11 min |
| 2025-10 | 31 | 87% | -5 min |
| 2025-11 | 29 | 76% | +5 min |
| 2025-12 | 19 | 53% | +26 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 83% |
| Tue | 25 | 88% |
| Wed | 25 | 100% |
| Thu | 25 | 80% |
| Fri | 25 | 88% |
| Sat | 23 | 83% |
| Sun | 24 | 58% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…