Flight OddsWN3433 SEA → STL
Southwest Airlines · Seattle, WA to St. Louis, MO · 8 flights observed, 2025-08-09 to 2025-09-27 · 1,709 mi
WN3433 covers more than one route in the data window — the stats below are for SEA → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
38%
Median delay
+31 min
90th percentile
+69 min
Cancellation rate
0%
How often is WN3433 on time?
Across 8 flights on SEA → STL from 2025-08-09 to 2025-09-27, WN3433 arrived within 15 minutes of schedule 38% of the time. The median arrival delay was +31 min, and the worst 10% of flights arrived +69 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 | 3 | 38% |
| 16-30 min | 1 | 13% |
| 31-60 min | 3 | 38% |
| 61-120 min | 1 | 13% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 4 | 25% | +45 min |
| 2025-09 | 4 | 50% | +26 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 | 8 | 38% |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…