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San Francisco ✈ Ontario

Cheapest airfares from San Francisco to Ontario

Search for flight deals to Ontario

*All prices in AUD, prices may fluctuate slightly from the advertised price.
Fly on Thu, Jul 24th 2025
From $127

Frontier Airlines
F9 4158 (1 Transfer)
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Fly on Wed, Dec 31st 2025
From $189

United Airlines
UA 2313 (Direct)
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