WN2556 STL → MKE

Southwest Airlines · St. Louis, MO to Milwaukee, WI · 45 flights observed, 2025-11-02 to 2026-01-05 · 317 mi

This flight's reliability varies a lot by day of week — 100% on-time on Fridays vs. 63% on Thursdays.

WN2556 covers more than one route in the data window — the stats below are for STL → MKE, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
80%
Median delay
-8 min
90th percentile
+30 min
Cancellation rate
0%

How often is WN2556 on time?

Across 45 flights on STL → MKE from 2025-11-02 to 2026-01-05, WN2556 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +30 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3680%
16-30 min511%
31-60 min37%
61-120 min12%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-112383%-3 min
2025-122080%+0 min
2026-01250%+38 min

Performance by day of week

DayFlightsOn-time
Mon771%
Tue683%
Wed875%
Thu863%
Fri6100%
Sat4100%
Sun683%

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