BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
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AIRLINE × ROUTE REPORT
HOUSTL

Southwest Airlines Houston, TX (HOU) to St. Louis, MO (STL) reliability

A dedicated historical view of 1,544 Southwest Airlines marketed flights on this direction during July 2025–June 2026.

HISTORICAL ROUTE SIGNALGenerally reliable
79.3%arrived on time
12.0%30+ min late
0.3%cancelled
1,544scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late12.0%
60+ minutes late5.6%
Cancelled0.3%
Average arrival+5.1 mincompleted flights

What this airline-route sample says

Southwest Airlines completed 99.4% of its scheduled reportable HOU to STL flights in the observation window. 79.3% of all scheduled flights arrived less than 15 minutes late, while 5.6% arrived at least an hour late.

Use the parent route report to compare this result with other marketing carriers and with time-of-day, weekday and monthly slices.

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Not a prediction.

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