BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
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SMF→ONT

Southwest Airlines Sacramento, CA (SMF) to Ontario, CA (ONT) reliability

Among 2,111 scheduled Southwest Airlines flights from SMF to ONT, 84.4% arrived on time, 8.9% 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 SIGNALLower disruption
84.4%arrived on time
8.9%30+ min late
0.2%cancelled
2,111scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late8.9%
60+ minutes late4.7%
Cancelled0.2%
Average arrival+1.2 mincompleted flights

What did Southwest Airlines SMF to ONT record?

Southwest Airlines completed 99.6% of its scheduled reportable SMF to ONT flights in the observation window. 84.4% of all scheduled flights arrived less than 15 minutes late, while 4.7% arrived at least an hour late.

What were Southwest Airlines SMF to ONT disruption rates?

For Southwest Airlines SMF-to-ONT flights, 8.9% arrived at least 30 minutes late, 0.2% were cancelled, and 0.1% were diverted.

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What was the Southwest Airlines SMF to ONT scheduled cohort?

The Southwest Airlines SMF-to-ONT cohort contained 2,111 scheduled flights; 2,103 completed, 5 were cancelled, and 3 were diverted.

Not a prediction.

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