Flight OddsWN1821 SAN → SJC
Southwest Airlines · San Diego, CA to San Jose, CA · 59 flights observed, 2025-11-02 to 2026-01-05 · 417 mi
WN1821 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
58%
Median delay
+12 min
90th percentile
+80 min
Cancellation rate
0%
How often is WN1821 on time?
Across 59 flights on SAN → SJC from 2025-11-02 to 2026-01-05, WN1821 arrived within 15 minutes of schedule 58% of the time. The median arrival delay was +12 min, and the worst 10% of flights arrived +80 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 34 | 58% |
| 16-30 min | 10 | 17% |
| 31-60 min | 7 | 12% |
| 61-120 min | 6 | 10% |
| 2+ hrs | 2 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 26 | 73% | +16 min |
| 2025-12 | 29 | 45% | +22 min |
| 2026-01 | 4 | 50% | +62 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 50% |
| Tue | 9 | 67% |
| Wed | 9 | 44% |
| Thu | 8 | 75% |
| Fri | 9 | 44% |
| Sat | 4 | 100% |
| Sun | 10 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…