Frontier Airlines departures from Ontario, CA (ONT)

Among 2,233 scheduled Frontier Airlines flights departing ONT, 74.4% arrived on time, 17.6% arrived at least 30 minutes late, and 1.4% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Origin and marketing-carrier cohort · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable

74.4%arrived on time

17.6%30+ min late

1.4%cancelled

2,233scheduled flights

Based on July 2025–June 2026; on time means arrival less than 15 minutes late.

30+ minutes late17.6%

60+ minutes late10.5%

Cancelled1.4%

Diverted0.0%

What does the Frontier Airlines ONT sample show?

Frontier Airlines completed 98.6% of its scheduled departures from ONT; 10.5% arrived at least one hour late and 0.0% were diverted.

What were Frontier Airlines at ONT disruption rates?

For Frontier Airlines departures from ONT, 17.6% arrived at least 30 minutes late, 1.4% were cancelled, and 0.0% were diverted.

Compare all airlines at ONT

How large was the Frontier Airlines cohort at ONT?

The Frontier Airlines cohort at ONT contained 2,233 scheduled flights, including 2,202 completed flights, 31 cancellations, and 0 diversions.