Flight OddsWN4230 SJC → SAN
Southwest Airlines · San Jose, CA to San Diego, CA · 58 flights observed, 2025-08-05 to 2025-10-01 · 417 mi
WN4230 covers more than one route in the data window — the stats below are for SJC → SAN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
63%
Median delay
0 min
90th percentile
+53 min
Cancellation rate
3%
How often is WN4230 on time?
Across 58 flights on SJC → SAN from 2025-08-05 to 2025-10-01, WN4230 arrived within 15 minutes of schedule 63% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +53 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 | 35 | 63% |
| 16-30 min | 11 | 20% |
| 31-60 min | 6 | 11% |
| 61-120 min | 3 | 5% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 27 | 56% | +12 min |
| 2025-09 | 28 | 68% | +17 min |
| 2025-10 | 1 | 100% | -6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 38% |
| Tue | 9 | 89% |
| Wed | 8 | 100% |
| Thu | 8 | 25% |
| Fri | 7 | 29% |
| Sat | 8 | 88% |
| Sun | 8 | 63% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…