Flight OddsWN858 SJC → SAN
Southwest Airlines · San Jose, CA to San Diego, CA · 49 flights observed, 2025-08-05 to 2025-10-01 · 417 mi
WN858 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
75%
Median delay
-1 min
90th percentile
+41 min
Cancellation rate
2%
How often is WN858 on time?
Across 49 flights on SJC → SAN from 2025-08-05 to 2025-10-01, WN858 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +41 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 | 36 | 75% |
| 16-30 min | 5 | 10% |
| 31-60 min | 4 | 8% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 2 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 23 | 74% | +14 min |
| 2025-09 | 24 | 75% | +7 min |
| 2025-10 | 1 | 100% | +14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 86% |
| Tue | 9 | 89% |
| Wed | 8 | 75% |
| Thu | 8 | 50% |
| Fri | 8 | 63% |
| Sat | No data | — |
| Sun | 8 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…