Flight OddsSouthwest Airlines · San Francisco, CA to San Diego, CA · 13 flights observed, 2025-10-02 to 2025-10-30 · 447 mi
WN3957 covers more than one route in the data window — the stats below are for SFO → SAN, the one it has flown most recently. The others are linked under “Other routes”.
How often is WN3957 on time?
Across 13 flights on SFO → SAN from 2025-10-02 to 2025-10-30, WN3957 arrived within 15 minutes of schedule 17% of the time. The median arrival delay was +72 min, and the worst 10% of flights arrived +205 min or later. 8% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 2 | 17% |
| 16-30 min | 1 | 8% |
| 31-60 min | 2 | 17% |
| 61-120 min | 3 | 25% |
| 2+ hrs | 4 | 33% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 12 | 17% | +88 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 33% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 5 | 0% |
| Fri | 4 | 25% |
| Sat | No data | — |
| 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…