BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
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MCI→STL

Southwest Airlines Kansas City, MO (MCI) to St. Louis, MO (STL) reliability

Among 1,020 scheduled Southwest Airlines flights from MCI to STL, 85.8% arrived on time, 8.8% arrived at least 30 minutes late, and 0.4% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Marketing carrier: Southwest Airlines (WN) · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
85.8%arrived on time
8.8%30+ min late
0.4%cancelled
1,020scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late8.8%
60+ minutes late3.1%
Cancelled0.4%
Average arrival-1.8 mincompleted flights

What did Southwest Airlines MCI to STL record?

Southwest Airlines completed 99.5% of its scheduled reportable MCI to STL flights in the observation window. 85.8% of all scheduled flights arrived less than 15 minutes late, while 3.1% arrived at least an hour late.

What were Southwest Airlines MCI to STL disruption rates?

For Southwest Airlines MCI-to-STL flights, 8.8% arrived at least 30 minutes late, 0.4% were cancelled, and 0.1% were diverted.

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What was the Southwest Airlines MCI to STL scheduled cohort?

The Southwest Airlines MCI-to-STL cohort contained 1,020 scheduled flights; 1,015 completed, 4 were cancelled, and 1 were diverted.

Not a prediction.

This is a descriptive historical rate. Schedule changes, seasonal operations and current conditions may differ.