STL → SMF Southwest Airlines
Southwest Airlines · St. Louis, MO to Sacramento, CA · 331 flights, 2025-07-01 to 2026-06-30 · aggregated across 16 flight numbers
On-time arrival
80%
Median delay
0 min
90th percentile
+29 min
Cancellation rate
0%
How on-time is Southwest Airlines from STL to SMF?
Across every Southwest Airlines flight number on STL → SMF (331 flights, 2025-07-01 to 2026-06-30), 80% arrived within 15 minutes of schedule. Median arrival delay 0 min; the worst 10% ran +29 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 265 | 80% |
| 16-30 min | 34 | 10% |
| 31-60 min | 16 | 5% |
| 61-120 min | 13 | 4% |
| 2+ hrs | 3 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 84% | +10 min |
| 2025-08 | 31 | 87% | -1 min |
| 2025-09 | 30 | 97% | -3 min |
| 2025-10 | 31 | 61% | +16 min |
| 2025-11 | 29 | 76% | +4 min |
| 2025-12 | 31 | 65% | +22 min |
| 2026-01 | 10 | 70% | +7 min |
| 2026-02 | 18 | 89% | +8 min |
| 2026-03 | 29 | 79% | +6 min |
| 2026-04 | 30 | 87% | +2 min |
| 2026-05 | 31 | 87% | -6 min |
| 2026-06 | 30 | 77% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 49 | 76% |
| Tue | 45 | 91% |
| Wed | 43 | 79% |
| Thu | 48 | 88% |
| Fri | 49 | 86% |
| Sat | 47 | 74% |
| Sun | 50 | 68% |
WN flight numbers on STL → SMF
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…