Southwest Airlines · Las Vegas, NV to Washington, DC · 10 flights observed, 2025-07-01 to 2025-07-30 · 2,089 mi
WN4558 covers more than one route in the data window — the stats below are for LAS → DCA, the one it has flown most recently. The others are linked under “Other routes”.
How often is WN4558 on time?
Across 10 flights on LAS → DCA from 2025-07-01 to 2025-07-30, WN4558 arrived within 15 minutes of schedule 33% of the time. The median arrival delay was +17 min, and the worst 10% of flights arrived +53 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 | 3 | 33% |
| 16-30 min | 3 | 33% |
| 31-60 min | 3 | 33% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 9 | 33% | +21 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | 4 | 25% |
| Wed | 5 | 40% |
| Thu | No data | — |
| Fri | No data | — |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…