STS → SAN Southwest Airlines
Southwest Airlines · Santa Rosa, CA to San Diego, CA · 132 flights, 2026-04-08 to 2026-06-30 · aggregated across 4 flight numbers
On-time arrival
82%
Median delay
-9 min
90th percentile
+38 min
Cancellation rate
0%
How on-time is Southwest Airlines from STS to SAN?
Across every Southwest Airlines flight number on STS → SAN (132 flights, 2026-04-08 to 2026-06-30), 82% arrived within 15 minutes of schedule. Median arrival delay -9 min; the worst 10% ran +38 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 108 | 82% |
| 16-30 min | 9 | 7% |
| 31-60 min | 7 | 5% |
| 61-120 min | 5 | 4% |
| 2+ hrs | 3 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 36 | 78% | +12 min |
| 2026-05 | 49 | 92% | -8 min |
| 2026-06 | 47 | 74% | +10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 75% |
| Tue | 12 | 100% |
| Wed | 12 | 92% |
| Thu | 24 | 83% |
| Fri | 24 | 67% |
| Sat | 12 | 100% |
| Sun | 24 | 79% |
WN flight numbers on STS → SAN
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…