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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, Jun 26th 2025
From $103

United Airlines
UA 1697 (Direct)
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Fly on Sun, Jun 1st 2025
From $106

Frontier Airlines
F9 2678 (Direct)
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Fly on Fri, Aug 1st 2025
From $111

United Airlines
UA 448 (Direct)
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Fly on Wed, Sep 10th 2025
From $153

United Airlines
UA 1772 (Direct)
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Fly on Fri, Aug 22nd 2025
From $186

United Airlines
UA 1772 (Direct)
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