Flight Deals
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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, Jan 1st 2026
From $178

Frontier Airlines
F9 1850 (1 Transfer)
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Fly on Tue, Mar 24th 2026
From $179

Frontier Airlines
F9 2678 (Direct)
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Fly on Mon, Dec 15th 2025
From $224

United Airlines
UA 448 (Direct)
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Fly on Sat, Jun 6th 2026
From $334

United Airlines
UA 552 (Direct)
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