Flight OddsWN4539 SAN → SJC
Southwest Airlines · San Diego, CA to San Jose, CA · 59 flights observed, 2025-11-02 to 2026-01-05 · 417 mi
WN4539 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
74%
Median delay
+1 min
90th percentile
+51 min
Cancellation rate
2%
How often is WN4539 on time?
Across 59 flights on SAN → SJC from 2025-11-02 to 2026-01-05, WN4539 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +51 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 43 | 74% |
| 16-30 min | 1 | 2% |
| 31-60 min | 10 | 17% |
| 61-120 min | 3 | 5% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 25 | 84% | +2 min |
| 2025-12 | 28 | 71% | +11 min |
| 2026-01 | 5 | 40% | +58 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 80% |
| Tue | 9 | 78% |
| Wed | 9 | 89% |
| Thu | 8 | 88% |
| Fri | 8 | 50% |
| Sat | 5 | 60% |
| Sun | 9 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…