Flight OddsWN2520 SAN → STL
Southwest Airlines · San Diego, CA to St. Louis, MO · 5 flights observed, 2025-07-05 to 2025-08-02 · 1,557 mi
WN2520 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
20%
Median delay
+24 min
90th percentile
+126 min
Cancellation rate
0%
How often is WN2520 on time?
Across 5 flights on SAN → STL from 2025-07-05 to 2025-08-02, WN2520 arrived within 15 minutes of schedule 20% of the time. The median arrival delay was +24 min, and the worst 10% of flights arrived +126 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 | 1 | 20% |
| 16-30 min | 3 | 60% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 20% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 4 | 0% | +66 min |
| 2025-08 | 1 | 100% | -7 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 | 5 | 20% |
| 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…