Flight OddsSTL → ATL Southwest Airlines
Southwest Airlines · St. Louis, MO to Atlanta, GA · 1,130 flights, 2025-07-01 to 2026-06-30 · aggregated across 62 flight numbers
On-time arrival
81%
Median delay
-8 min
90th percentile
+34 min
Cancellation rate
1%
How on-time is Southwest Airlines from STL to ATL?
Across every Southwest Airlines flight number on STL → ATL (1,130 flights, 2025-07-01 to 2026-06-30), 81% arrived within 15 minutes of schedule. Median arrival delay -8 min; the worst 10% ran +34 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 904 | 81% |
| 16-30 min | 83 | 7% |
| 31-60 min | 62 | 6% |
| 61-120 min | 41 | 4% |
| 2+ hrs | 24 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 112 | 72% | +15 min |
| 2025-08 | 96 | 81% | +5 min |
| 2025-09 | 95 | 95% | -8 min |
| 2025-10 | 110 | 89% | -3 min |
| 2025-11 | 89 | 83% | +7 min |
| 2025-12 | 99 | 78% | +7 min |
| 2026-01 | 84 | 94% | -7 min |
| 2026-02 | 84 | 86% | -5 min |
| 2026-03 | 88 | 70% | +8 min |
| 2026-04 | 86 | 85% | +2 min |
| 2026-05 | 86 | 73% | +5 min |
| 2026-06 | 85 | 67% | +23 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 174 | 78% |
| Tue | 170 | 87% |
| Wed | 164 | 88% |
| Thu | 172 | 85% |
| Fri | 172 | 80% |
| Sat | 102 | 78% |
| Sun | 160 | 71% |
WN flight numbers on STL → ATL
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…