Flight OddsWN4075 DCA → STL
Southwest Airlines · Washington, DC to St. Louis, MO · 20 flights observed, 2026-03-05 to 2026-04-06 · 719 mi
WN4075 covers more than one route in the data window — the stats below are for DCA → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
53%
Median delay
+13 min
90th percentile
+85 min
Cancellation rate
5%
How often is WN4075 on time?
Across 20 flights on DCA → STL from 2026-03-05 to 2026-04-06, WN4075 arrived within 15 minutes of schedule 53% of the time. The median arrival delay was +13 min, and the worst 10% of flights arrived +85 min or later. 5% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 10 | 53% |
| 16-30 min | 2 | 11% |
| 31-60 min | 3 | 16% |
| 61-120 min | 3 | 16% |
| 2+ hrs | 1 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 15 | 47% | +37 min |
| 2026-04 | 4 | 75% | +8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 5 | 60% |
| Fri | 5 | 40% |
| 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…