AUS → STL Southwest Airlines
Southwest Airlines · Austin, TX to St. Louis, MO · 977 flights, 2025-07-01 to 2026-06-30 · aggregated across 46 flight numbers
On-time arrival
78%
Median delay
-3 min
90th percentile
+34 min
Cancellation rate
0%
How on-time is Southwest Airlines from AUS to STL?
Across every Southwest Airlines flight number on AUS → STL (977 flights, 2025-07-01 to 2026-06-30), 78% arrived within 15 minutes of schedule. Median arrival delay -3 min; the worst 10% ran +34 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 759 | 78% |
| 16-30 min | 95 | 10% |
| 31-60 min | 64 | 7% |
| 61-120 min | 34 | 3% |
| 2+ hrs | 22 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 93 | 72% | +11 min |
| 2025-08 | 76 | 78% | +11 min |
| 2025-09 | 73 | 79% | 0 min |
| 2025-10 | 83 | 83% | +3 min |
| 2025-11 | 85 | 81% | +6 min |
| 2025-12 | 91 | 82% | +3 min |
| 2026-01 | 62 | 90% | +1 min |
| 2026-02 | 59 | 83% | -2 min |
| 2026-03 | 86 | 72% | +13 min |
| 2026-04 | 89 | 85% | +3 min |
| 2026-05 | 92 | 74% | +8 min |
| 2026-06 | 85 | 60% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 148 | 74% |
| Tue | 141 | 84% |
| Wed | 138 | 84% |
| Thu | 148 | 78% |
| Fri | 150 | 77% |
| Sat | 88 | 80% |
| Sun | 161 | 70% |
WN flight numbers on AUS → STL
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…