WN4078 DEN → MCI

Southwest Airlines · Denver, CO to Kansas City, MO · 25 flights observed, 2026-01-11 to 2026-03-02 · 533 mi

This flight's reliability varies a lot by day of week — 100% on-time on Thursdays vs. 40% on Fridays.

WN4078 covers more than one route in the data window — the stats below are for DEN → MCI, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
68%
Median delay
+1 min
90th percentile
+76 min
Cancellation rate
0%

How often is WN4078 on time?

Across 25 flights on DEN → MCI from 2026-01-11 to 2026-03-02, WN4078 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +76 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1768%
16-30 min14%
31-60 min312%
61-120 min416%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-01540%+36 min
2026-021872%+9 min
2026-032100%-15 min

Performance by day of week

DayFlightsOn-time
Mon580%
Tue10%
WedNo data—
Thu5100%
Fri540%
Sat333%
Sun683%

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