Flight OddsWN4238 STL → SAN
Southwest Airlines · St. Louis, MO to San Diego, CA · 59 flights observed, 2025-11-02 to 2026-01-05 · 1,557 mi
WN4238 covers more than one route in the data window — the stats below are for STL → SAN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
71%
Median delay
+3 min
90th percentile
+70 min
Cancellation rate
0%
How often is WN4238 on time?
Across 59 flights on STL → SAN from 2025-11-02 to 2026-01-05, WN4238 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +70 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 | 42 | 71% |
| 16-30 min | 5 | 8% |
| 31-60 min | 3 | 5% |
| 61-120 min | 7 | 12% |
| 2+ hrs | 2 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 26 | 73% | +9 min |
| 2025-12 | 29 | 69% | +21 min |
| 2026-01 | 4 | 75% | +24 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 70% |
| Tue | 9 | 89% |
| Wed | 9 | 78% |
| Thu | 8 | 50% |
| Fri | 9 | 78% |
| Sat | 4 | 75% |
| Sun | 10 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…