Flight OddsWN4121 SAN → OAK
Southwest Airlines · San Diego, CA to Oakland, CA · 22 flights observed, 2026-01-11 to 2026-03-02 · 446 mi
WN4121 covers more than one route in the data window — the stats below are for SAN → OAK, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
71%
Median delay
+5 min
90th percentile
+35 min
Cancellation rate
5%
How often is WN4121 on time?
Across 22 flights on SAN → OAK from 2026-01-11 to 2026-03-02, WN4121 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +35 min or later. 5% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 15 | 71% |
| 16-30 min | 3 | 14% |
| 31-60 min | 2 | 10% |
| 61-120 min | 1 | 5% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 4 | 75% | +3 min |
| 2026-02 | 15 | 67% | +8 min |
| 2026-03 | 2 | 100% | -9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 1 | 0% |
| Wed | No data | — |
| Thu | 4 | 75% |
| Fri | 5 | 40% |
| Sat | No data | — |
| Sun | 6 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…