Flight OddsMIA → STL Southwest Airlines
Southwest Airlines · Miami, FL to St. Louis, MO · 441 flights, 2025-07-01 to 2026-06-30 · aggregated across 30 flight numbers
On-time arrival
68%
Median delay
+1 min
90th percentile
+72 min
Cancellation rate
0%
How on-time is Southwest Airlines from MIA to STL?
Across every Southwest Airlines flight number on MIA → STL (441 flights, 2025-07-01 to 2026-06-30), 68% arrived within 15 minutes of schedule. Median arrival delay +1 min; the worst 10% ran +72 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 299 | 68% |
| 16-30 min | 51 | 12% |
| 31-60 min | 34 | 8% |
| 61-120 min | 41 | 9% |
| 2+ hrs | 13 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 39 | 56% | +40 min |
| 2025-08 | 41 | 63% | +20 min |
| 2025-09 | 38 | 68% | +16 min |
| 2025-10 | 39 | 82% | +8 min |
| 2025-11 | 36 | 72% | +7 min |
| 2025-12 | 35 | 49% | +26 min |
| 2026-01 | 36 | 72% | +6 min |
| 2026-02 | 32 | 53% | +22 min |
| 2026-03 | 40 | 75% | +12 min |
| 2026-04 | 33 | 73% | +11 min |
| 2026-05 | 31 | 71% | +12 min |
| 2026-06 | 38 | 82% | +1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 65% |
| Tue | 53 | 72% |
| Wed | 51 | 71% |
| Thu | 52 | 69% |
| Fri | 52 | 60% |
| Sat | 101 | 75% |
| Sun | 78 | 63% |
WN flight numbers on MIA → STL
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…