WN4588 DEN → RNO

Southwest Airlines · Denver, CO to Reno, NV · 23 flights observed, 2026-03-05 to 2026-04-06 · 804 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is +8 min, while the worst 10% run +82 min or later.

WN4588 covers more than one route in the data window — the stats below are for DEN → RNO, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
74%
Median delay
+8 min
90th percentile
+82 min
Cancellation rate
0%

How often is WN4588 on time?

Across 23 flights on DEN → RNO from 2026-03-05 to 2026-04-06, WN4588 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was +8 min, and the worst 10% of flights arrived +82 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time1774%
16-30 min29%
31-60 min14%
61-120 min29%
2+ hrs14%

Performance by month

MonthFlightsOn-timeAvg delay
2026-031968%+26 min
2026-044100%-1 min

Performance by day of week

DayFlightsOn-time
Mon580%
Tue4100%
Wed475%
Thu560%
Fri560%
SatNo data—
SunNo data—

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…