Flight OddsWN4257 SAN → SJC
Southwest Airlines · San Diego, CA to San Jose, CA · 35 flights observed, 2025-11-02 to 2026-01-05 · 417 mi
WN4257 covers more than one route in the data window — the stats below are for SAN → SJC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
94%
Median delay
-9 min
90th percentile
+5 min
Cancellation rate
3%
How often is WN4257 on time?
Across 35 flights on SAN → SJC from 2025-11-02 to 2026-01-05, WN4257 arrived within 15 minutes of schedule 94% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +5 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 | 32 | 94% |
| 16-30 min | 1 | 3% |
| 31-60 min | 1 | 3% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 15 | 100% | -7 min |
| 2025-12 | 15 | 93% | -7 min |
| 2026-01 | 4 | 75% | -1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 100% |
| Tue | 3 | 100% |
| Wed | 1 | 100% |
| Thu | 3 | 100% |
| Fri | 8 | 75% |
| Sat | 5 | 100% |
| Sun | 9 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…