Southwest Airlines departures from St. Louis, MO (STL)

Among 39,703 scheduled Southwest Airlines flights departing STL, 76.4% arrived on time, 13.8% arrived at least 30 minutes late, and 0.7% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Origin and marketing-carrier cohort · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable

76.4%arrived on time

13.8%30+ min late

0.7%cancelled

39,703scheduled flights

Based on July 2025–June 2026; on time means arrival less than 15 minutes late.

30+ minutes late13.8%

60+ minutes late6.6%

Cancelled0.7%

Diverted0.3%

What does the Southwest Airlines STL sample show?

Southwest Airlines completed 99.1% of its scheduled departures from STL; 6.6% arrived at least one hour late and 0.3% were diverted.

What were Southwest Airlines at STL disruption rates?

For Southwest Airlines departures from STL, 13.8% arrived at least 30 minutes late, 0.7% were cancelled, and 0.3% were diverted.

Compare all airlines at STL

How large was the Southwest Airlines cohort at STL?

The Southwest Airlines cohort at STL contained 39,703 scheduled flights, including 39,331 completed flights, 263 cancellations, and 109 diversions.