Cheapest one-way flights from San Francisco to Ontario in October from 128€

AirHint found the following cheapest one-way flights from San Francisco (SFO) to Ontario (ONT) in October 2026 (see full year).

One-Way flights

15 Oct Southwest Airlines
03 Oct Southwest Airlines
12 Oct Southwest Airlines
08 Oct Southwest Airlines
05 Oct Southwest Airlines

Also check the deals for return flights from San Francisco to Ontario in October.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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