Ontario California aerial with San Gabriel Mountains
ONT
Ontario
San Francisco Golden Gate Bridge
SFO
San Francisco

Ontario → San Francisco

Frontier Airlines · Round Trip · Nonstop

Save $54 (34% off)
Compared to the typical price of $158
$104$158

per person · round trip

Book This Deal

Flight Details

Cabin
Economy
Departs
May 12, 2026
Returns
May 14, 2026

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