Flight OddsWN4838 STL → DEN
Southwest Airlines · St. Louis, MO to Denver, CO · 30 flights observed, 2026-01-10 to 2026-03-02 · 770 mi
WN4838 covers more than one route in the data window — the stats below are for STL → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
73%
Median delay
+1 min
90th percentile
+35 min
Cancellation rate
0%
How often is WN4838 on time?
Across 30 flights on STL → DEN from 2026-01-10 to 2026-03-02, WN4838 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +35 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 | 22 | 73% |
| 16-30 min | 2 | 7% |
| 31-60 min | 5 | 17% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 9 | 67% | +17 min |
| 2026-02 | 19 | 74% | +6 min |
| 2026-03 | 2 | 100% | -3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 100% |
| Tue | 1 | 0% |
| Wed | No data | — |
| Thu | 5 | 80% |
| Fri | 5 | 60% |
| Sat | 8 | 75% |
| Sun | 6 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…