Flight OddsSouthwest Airlines · San Diego, CA to San Francisco, CA · 18 flights observed, 2025-11-22 to 2026-01-04 · 447 mi
WN4789 covers more than one route in the data window — the stats below are for SAN → SFO, the one it has flown most recently. The others are linked under “Other routes”.
How often is WN4789 on time?
Across 18 flights on SAN → SFO from 2025-11-22 to 2026-01-04, WN4789 arrived within 15 minutes of schedule 41% of the time. The median arrival delay was +38 min, and the worst 10% of flights arrived +93 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 7 | 41% |
| 16-30 min | 0 | 0% |
| 31-60 min | 6 | 35% |
| 61-120 min | 3 | 18% |
| 2+ hrs | 1 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 4 | 75% | +12 min |
| 2025-12 | 10 | 40% | +32 min |
| 2026-01 | 3 | 0% | +93 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 67% |
| Tue | 3 | 33% |
| Wed | 1 | 100% |
| Thu | No data | — |
| Fri | 2 | 0% |
| Sat | 5 | 60% |
| Sun | 3 | 0% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…