WN543 DEN → MEM

Southwest Airlines · Denver, CO to Memphis, TN · 18 flights observed, 2025-11-22 to 2026-01-04 · 872 mi

This flight runs much more reliably at some times of day than others — 80% on-time departing 9pm–12am vs. 38% departing 6–9pm.

WN543 covers more than one route in the data window — the stats below are for DEN → MEM, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
50%
Median delay
+17 min
90th percentile
+52 min
Cancellation rate
0%

How often is WN543 on time?

Across 18 flights on DEN → MEM from 2025-11-22 to 2026-01-04, WN543 arrived within 15 minutes of schedule 50% of the time. The median arrival delay was +17 min, and the worst 10% of flights arrived +52 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time950%
16-30 min317%
31-60 min528%
61-120 min16%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-11475%+17 min
2025-121145%+26 min
2026-01333%+28 min

Performance by day of week

DayFlightsOn-time
Mon333%
Tue333%
Wed1100%
ThuNo data—
Fri30%
Sat580%
Sun367%

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