Flight OddsSouthwest Airlines · San Diego, CA to San Francisco, CA · 40 flights observed, 2025-11-02 to 2026-01-05 · 447 mi
WN4250 covers more than one route in the data window — the stats below are for SAN → SFO, the one it has flown most recently. The others are linked under “Other routes”.
How often is WN4250 on time?
Across 40 flights on SAN → SFO from 2025-11-02 to 2026-01-05, WN4250 arrived within 15 minutes of schedule 46% of the time. The median arrival delay was +18 min, and the worst 10% of flights arrived +108 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 18 | 46% |
| 16-30 min | 5 | 13% |
| 31-60 min | 7 | 18% |
| 61-120 min | 6 | 15% |
| 2+ hrs | 3 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 18 | 44% | +31 min |
| 2025-12 | 17 | 53% | +34 min |
| 2026-01 | 4 | 25% | +114 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 40% |
| Tue | 3 | 67% |
| Wed | 1 | 100% |
| Thu | 3 | 33% |
| Fri | 8 | 13% |
| Sat | 9 | 78% |
| Sun | 10 | 40% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…