Flight OddsWN1231 PHX → STL
Southwest Airlines · Phoenix, AZ to St. Louis, MO · 43 flights observed, 2025-11-03 to 2026-01-04 · 1,262 mi
WN1231 covers more than one route in the data window — the stats below are for PHX → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
52%
Median delay
+11 min
90th percentile
+105 min
Cancellation rate
0%
How often is WN1231 on time?
Across 43 flights on PHX → STL from 2025-11-03 to 2026-01-04, WN1231 arrived within 15 minutes of schedule 52% of the time. The median arrival delay was +11 min, and the worst 10% of flights arrived +105 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 | 22 | 52% |
| 16-30 min | 7 | 17% |
| 31-60 min | 5 | 12% |
| 61-120 min | 5 | 12% |
| 2+ hrs | 3 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 13 | 54% | +26 min |
| 2025-12 | 25 | 52% | +28 min |
| 2026-01 | 4 | 50% | +70 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 17% |
| Tue | 9 | 67% |
| Wed | 9 | 67% |
| Thu | 5 | 40% |
| Fri | 4 | 25% |
| Sat | 5 | 60% |
| Sun | 4 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…