Flight OddsWN4451 SAN → STL
Southwest Airlines · San Diego, CA to St. Louis, MO · 26 flights observed, 2026-04-07 to 2026-06-03 · 1,557 mi
WN4451 covers more than one route in the data window — the stats below are for SAN → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
92%
Median delay
-5 min
90th percentile
+9 min
Cancellation rate
0%
How often is WN4451 on time?
Across 26 flights on SAN → STL from 2026-04-07 to 2026-06-03, WN4451 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +9 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 24 | 92% |
| 16-30 min | 2 | 8% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 11 | 100% | -14 min |
| 2026-05 | 13 | 92% | -3 min |
| 2026-06 | 2 | 50% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | 9 | 89% |
| Wed | 9 | 89% |
| Thu | No data | — |
| Fri | No data | — |
| Sat | 8 | 100% |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…