Flight OddsSTL → SLC Southwest Airlines
Southwest Airlines · St. Louis, MO to Salt Lake City, UT · 9 flights, 2025-07-05 to 2026-06-27 · aggregated across 2 flight numbers
On-time arrival
78%
Median delay
-6 min
90th percentile
+43 min
Cancellation rate
0%
How on-time is Southwest Airlines from STL to SLC?
Across every Southwest Airlines flight number on STL → SLC (9 flights, 2025-07-05 to 2026-06-27), 78% arrived within 15 minutes of schedule. Median arrival delay -6 min; the worst 10% ran +43 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 7 | 78% |
| 16-30 min | 0 | 0% |
| 31-60 min | 2 | 22% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 4 | 100% | -8 min |
| 2025-08 | 1 | 100% | -13 min |
| 2026-06 | 4 | 50% | +19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | No data | — |
| Wed | No data | — |
| Thu | No data | — |
| Fri | No data | — |
| Sat | 9 | 78% |
| Sun | No data | — |
WN flight numbers on STL → SLC
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…