Flight OddsDEN → STL Southwest Airlines
Southwest Airlines · Denver, CO to St. Louis, MO · 2,172 flights, 2025-07-01 to 2026-06-30 · aggregated across 113 flight numbers
On-time arrival
77%
Median delay
-4 min
90th percentile
+48 min
Cancellation rate
0%
How on-time is Southwest Airlines from DEN to STL?
Across every Southwest Airlines flight number on DEN → STL (2,172 flights, 2025-07-01 to 2026-06-30), 77% arrived within 15 minutes of schedule. Median arrival delay -4 min; the worst 10% ran +48 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,664 | 77% |
| 16-30 min | 174 | 8% |
| 31-60 min | 158 | 7% |
| 61-120 min | 111 | 5% |
| 2+ hrs | 50 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 210 | 67% | +23 min |
| 2025-08 | 178 | 65% | +19 min |
| 2025-09 | 176 | 82% | +5 min |
| 2025-10 | 185 | 81% | +1 min |
| 2025-11 | 153 | 84% | +1 min |
| 2025-12 | 168 | 79% | +6 min |
| 2026-01 | 156 | 88% | -4 min |
| 2026-02 | 161 | 86% | -1 min |
| 2026-03 | 191 | 78% | +9 min |
| 2026-04 | 187 | 81% | +2 min |
| 2026-05 | 188 | 73% | +8 min |
| 2026-06 | 204 | 68% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 324 | 74% |
| Tue | 315 | 83% |
| Wed | 301 | 80% |
| Thu | 322 | 75% |
| Fri | 327 | 76% |
| Sat | 230 | 80% |
| Sun | 338 | 72% |
WN flight numbers on DEN → STL
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…