Flight OddsWN4031 SAN → PHX
Southwest Airlines · San Diego, CA to Phoenix, AZ · 41 flights observed, 2025-11-02 to 2026-01-05 · 304 mi
WN4031 covers more than one route in the data window — the stats below are for SAN → PHX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
68%
Median delay
-2 min
90th percentile
+48 min
Cancellation rate
7%
How often is WN4031 on time?
Across 41 flights on SAN → PHX from 2025-11-02 to 2026-01-05, WN4031 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +48 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 26 | 68% |
| 16-30 min | 4 | 11% |
| 31-60 min | 7 | 18% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 18 | 61% | +15 min |
| 2025-12 | 18 | 78% | +2 min |
| 2026-01 | 2 | 50% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 83% |
| Tue | 6 | 83% |
| Wed | 8 | 50% |
| Thu | 7 | 86% |
| Fri | 5 | 40% |
| Sat | No data | — |
| Sun | 6 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…