Flight OddsSTL → LAS Southwest Airlines
Southwest Airlines · St. Louis, MO to Las Vegas, NV · 1,771 flights, 2025-07-01 to 2026-06-30 · aggregated across 105 flight numbers
On-time arrival
77%
Median delay
-3 min
90th percentile
+44 min
Cancellation rate
0%
How on-time is Southwest Airlines from STL to LAS?
Across every Southwest Airlines flight number on STL → LAS (1,771 flights, 2025-07-01 to 2026-06-30), 77% arrived within 15 minutes of schedule. Median arrival delay -3 min; the worst 10% ran +44 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,364 | 77% |
| 16-30 min | 142 | 8% |
| 31-60 min | 137 | 8% |
| 61-120 min | 86 | 5% |
| 2+ hrs | 33 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 145 | 76% | +9 min |
| 2025-08 | 138 | 86% | +5 min |
| 2025-09 | 135 | 81% | +6 min |
| 2025-10 | 161 | 77% | +8 min |
| 2025-11 | 146 | 84% | +1 min |
| 2025-12 | 159 | 74% | +9 min |
| 2026-01 | 137 | 80% | -3 min |
| 2026-02 | 126 | 82% | +2 min |
| 2026-03 | 174 | 84% | +1 min |
| 2026-04 | 149 | 71% | +13 min |
| 2026-05 | 142 | 80% | +5 min |
| 2026-06 | 150 | 55% | +24 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 265 | 71% |
| Tue | 256 | 82% |
| Wed | 247 | 82% |
| Thu | 260 | 78% |
| Fri | 263 | 78% |
| Sat | 197 | 80% |
| Sun | 274 | 73% |
WN flight numbers on STL → LAS
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…