Flight OddsSouthwest Airlines · St. Louis, MO to Raleigh/Durham, NC · 33 flights observed, 2026-03-05 to 2026-04-06 · 668 mi
WN4126 covers more than one route in the data window — the stats below are for STL → RDU, the one it has flown most recently. The others are linked under “Other routes”.
How often is WN4126 on time?
Across 33 flights on STL → RDU from 2026-03-05 to 2026-04-06, WN4126 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +15 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 | 30 | 91% |
| 16-30 min | 1 | 3% |
| 31-60 min | 1 | 3% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 27 | 93% | +0 min |
| 2026-04 | 6 | 83% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 4 | 100% |
| Wed | 4 | 75% |
| Thu | 5 | 100% |
| Fri | 5 | 100% |
| Sat | 5 | 80% |
| Sun | 5 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…