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

Southwest Airlines St. Louis, MO (STL) to San Diego, CA (SAN) reliability

A dedicated historical view of 474 Southwest Airlines marketed flights on this direction during July 2025–June 2026.

HISTORICAL ROUTE SIGNALGenerally reliable
74.5%arrived on time
14.8%30+ min late
0.2%cancelled
474scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late14.8%
60+ minutes late5.3%
Cancelled0.2%
Average arrival+6.6 mincompleted flights

What this airline-route sample says

Southwest Airlines completed 99.6% of its scheduled reportable STL to SAN flights in the observation window. 74.5% of all scheduled flights arrived less than 15 minutes late, while 5.3% 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.