Flight OddsWN4425 STL → DCA
Southwest Airlines · St. Louis, MO to Washington, DC · 64 flights observed, 2025-11-02 to 2026-01-05 · 719 mi
WN4425 covers more than one route in the data window — the stats below are for STL → DCA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
76%
Median delay
-5 min
90th percentile
+49 min
Cancellation rate
2%
How often is WN4425 on time?
Across 64 flights on STL → DCA from 2025-11-02 to 2026-01-05, WN4425 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +49 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 48 | 76% |
| 16-30 min | 5 | 8% |
| 31-60 min | 4 | 6% |
| 61-120 min | 6 | 10% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 27 | 74% | +9 min |
| 2025-12 | 31 | 81% | +4 min |
| 2026-01 | 5 | 60% | +19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 90% |
| Tue | 9 | 78% |
| Wed | 9 | 100% |
| Thu | 8 | 63% |
| Fri | 8 | 50% |
| Sat | 9 | 78% |
| Sun | 10 | 70% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…