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

United Airlines St. Louis, MO (STL) to San Francisco, CA (SFO) reliability

Among 207 scheduled United Airlines flights from STL to SFO, 63.3% arrived on time, 27.1% arrived at least 30 minutes late, and 0.5% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Marketing carrier: United Airlines (UA) · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
63.3%arrived on time
27.1%30+ min late
0.5%cancelled
207scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late27.1%
60+ minutes late15.5%
Cancelled0.5%
Average arrival+19.1 mincompleted flights

What did United Airlines STL to SFO record?

United Airlines completed 99.5% of its scheduled reportable STL to SFO flights in the observation window. 63.3% of all scheduled flights arrived less than 15 minutes late, while 15.5% arrived at least an hour late.

What were United Airlines STL to SFO disruption rates?

For United Airlines STL-to-SFO flights, 27.1% arrived at least 30 minutes late, 0.5% were cancelled, and 0.0% were diverted.

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What was the United Airlines STL to SFO scheduled cohort?

The United Airlines STL-to-SFO cohort contained 207 scheduled flights; 206 completed, 1 were cancelled, and 0 were diverted.

Not a prediction.

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