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

Southwest Airlines Phoenix, AZ (PHX) to St. Louis, MO (STL) reliability

Among 1,600 scheduled Southwest Airlines flights from PHX to STL, 76.0% arrived on time, 12.8% arrived at least 30 minutes late, and 0.2% 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 SIGNALGenerally reliable
76.0%arrived on time
12.8%30+ min late
0.2%cancelled
1,600scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late12.8%
60+ minutes late5.3%
Cancelled0.2%
Average arrival+7.3 mincompleted flights

What did Southwest Airlines PHX to STL record?

Southwest Airlines completed 99.1% of its scheduled reportable PHX to STL flights in the observation window. 76.0% of all scheduled flights arrived less than 15 minutes late, while 5.3% arrived at least an hour late.

What were Southwest Airlines PHX to STL disruption rates?

For Southwest Airlines PHX-to-STL flights, 12.8% arrived at least 30 minutes late, 0.2% were cancelled, and 0.8% were diverted.

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What was the Southwest Airlines PHX to STL scheduled cohort?

The Southwest Airlines PHX-to-STL cohort contained 1,600 scheduled flights; 1,585 completed, 3 were cancelled, and 12 were diverted.

Not a prediction.

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