Flight OddsWN4343 STL → MCI
Southwest Airlines · St. Louis, MO to Kansas City, MO · 20 flights observed, 2026-03-05 to 2026-04-06 · 237 mi
WN4343 covers more than one route in the data window — the stats below are for STL → MCI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
75%
Median delay
0 min
90th percentile
+70 min
Cancellation rate
0%
How often is WN4343 on time?
Across 20 flights on STL → MCI from 2026-03-05 to 2026-04-06, WN4343 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +70 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 | 15 | 75% |
| 16-30 min | 2 | 10% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 5% |
| 2+ hrs | 2 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 16 | 75% | +29 min |
| 2026-04 | 4 | 75% | -3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 5 | 80% |
| Fri | 5 | 100% |
| Sat | No data | — |
| Sun | 5 | 40% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…