Flight OddsSTL → SJU Southwest Airlines
Southwest Airlines · St. Louis, MO to San Juan, PR · 31 flights, 2025-07-05 to 2026-06-27 · aggregated across 7 flight numbers
On-time arrival
50%
Median delay
+16 min
90th percentile
+51 min
Cancellation rate
3%
How on-time is Southwest Airlines from STL to SJU?
Across every Southwest Airlines flight number on STL → SJU (31 flights, 2025-07-05 to 2026-06-27), 50% arrived within 15 minutes of schedule. Median arrival delay +16 min; the worst 10% ran +51 min or later. 3% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 15 | 50% |
| 16-30 min | 7 | 23% |
| 31-60 min | 7 | 23% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 4 | 50% | +22 min |
| 2025-08 | 1 | 100% | +6 min |
| 2025-11 | 4 | 75% | 0 min |
| 2025-12 | 4 | 25% | +24 min |
| 2026-01 | 4 | 0% | +33 min |
| 2026-02 | 4 | 50% | +24 min |
| 2026-03 | 4 | 50% | +26 min |
| 2026-04 | 1 | 0% | +39 min |
| 2026-06 | 4 | 100% | +0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | No data | — |
| Wed | No data | — |
| Thu | No data | — |
| Fri | No data | — |
| Sat | 30 | 50% |
| Sun | No data | — |
WN flight numbers on STL → SJU
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…