Flight OddsSTL → DAL Southwest Airlines
Southwest Airlines · St. Louis, MO to Dallas, TX · 1,925 flights, 2025-07-01 to 2026-06-30 · aggregated across 121 flight numbers
On-time arrival
77%
Median delay
-4 min
90th percentile
+46 min
Cancellation rate
2%
How on-time is Southwest Airlines from STL to DAL?
Across every Southwest Airlines flight number on STL → DAL (1,925 flights, 2025-07-01 to 2026-06-30), 77% arrived within 15 minutes of schedule. Median arrival delay -4 min; the worst 10% ran +46 min or later. 2% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,450 | 77% |
| 16-30 min | 153 | 8% |
| 31-60 min | 141 | 7% |
| 61-120 min | 92 | 5% |
| 2+ hrs | 49 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 159 | 72% | +13 min |
| 2025-08 | 169 | 78% | +13 min |
| 2025-09 | 171 | 78% | +5 min |
| 2025-10 | 153 | 75% | +13 min |
| 2025-11 | 149 | 80% | +2 min |
| 2025-12 | 151 | 78% | +8 min |
| 2026-01 | 137 | 91% | -2 min |
| 2026-02 | 146 | 88% | -3 min |
| 2026-03 | 165 | 77% | +4 min |
| 2026-04 | 156 | 79% | +1 min |
| 2026-05 | 163 | 73% | +13 min |
| 2026-06 | 166 | 57% | +27 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 285 | 73% |
| Tue | 277 | 86% |
| Wed | 275 | 85% |
| Thu | 286 | 74% |
| Fri | 286 | 79% |
| Sat | 204 | 73% |
| Sun | 272 | 67% |
WN flight numbers on STL → DAL
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…