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

Southwest Airlines Baltimore, MD (BWI) to St. Louis, MO (STL) reliability

Among 1,270 scheduled Southwest Airlines flights from BWI to STL, 81.7% arrived on time, 10.0% arrived at least 30 minutes late, and 1.2% 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
81.7%arrived on time
10.0%30+ min late
1.2%cancelled
1,270scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late10.0%
60+ minutes late5.9%
Cancelled1.2%
Average arrival+3.1 mincompleted flights

What did Southwest Airlines BWI to STL record?

Southwest Airlines completed 98.7% of its scheduled reportable BWI to STL flights in the observation window. 81.7% of all scheduled flights arrived less than 15 minutes late, while 5.9% arrived at least an hour late.

What were Southwest Airlines BWI to STL disruption rates?

For Southwest Airlines BWI-to-STL flights, 10.0% arrived at least 30 minutes late, 1.2% were cancelled, and 0.1% were diverted.

Compare all airlines on this route

What was the Southwest Airlines BWI to STL scheduled cohort?

The Southwest Airlines BWI-to-STL cohort contained 1,270 scheduled flights; 1,254 completed, 15 were cancelled, and 1 were diverted.

Not a prediction.

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