Flight OddsSouthwest Airlines · Raleigh/Durham, NC to St. Louis, MO · 18 flights observed, 2025-11-22 to 2026-01-04 · 668 mi
WN4181 covers more than one route in the data window — the stats below are for RDU → STL, the one it has flown most recently. The others are linked under “Other routes”.
How often is WN4181 on time?
Across 18 flights on RDU → STL from 2025-11-22 to 2026-01-04, WN4181 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +31 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 | 13 | 72% |
| 16-30 min | 3 | 17% |
| 31-60 min | 1 | 6% |
| 61-120 min | 1 | 6% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 4 | 75% | +15 min |
| 2025-12 | 11 | 73% | 0 min |
| 2026-01 | 3 | 67% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 33% |
| Tue | 3 | 100% |
| Wed | 1 | 100% |
| Thu | No data | — |
| Fri | 3 | 67% |
| Sat | 5 | 60% |
| Sun | 3 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…