Southwest Airlines St. Louis, MO (STL) to New Orleans, LA (MSY) reliability

Among 732 scheduled Southwest Airlines flights from STL to MSY, 83.5% arrived on time, 10.2% arrived at least 30 minutes late, and 0.1% 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

83.5%arrived on time

10.2%30+ min late

0.1%cancelled

732scheduled flights

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

30+ minutes late10.2%

60+ minutes late5.2%

Cancelled0.1%

Average arrival+1.8 mincompleted flights

What did Southwest Airlines STL to MSY record?

Southwest Airlines completed 99.7% of its scheduled reportable STL to MSY flights in the observation window. 83.5% of all scheduled flights arrived less than 15 minutes late, while 5.2% arrived at least an hour late.

What were Southwest Airlines STL to MSY disruption rates?

For Southwest Airlines STL-to-MSY flights, 10.2% arrived at least 30 minutes late, 0.1% were cancelled, and 0.1% were diverted.

Compare all airlines on this route

What was the Southwest Airlines STL to MSY scheduled cohort?

The Southwest Airlines STL-to-MSY cohort contained 732 scheduled flights; 730 completed, 1 were cancelled, and 1 were diverted.

Not a prediction.

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