Cheapest one-way flights from Ontario to San Francisco in November from $59

AirHint found the following cheapest one-way flights from Ontario (ONT) to San Francisco (SFO) in November 2025 (see full year).

One-Way flights

06 Nov Frontier Airlines direct
11 Nov Southwest Airlines
15 Nov Southwest Airlines
09 Nov Frontier Airlines direct
07 Nov Southwest Airlines
24 Nov Southwest Airlines
22 Nov Southwest Airlines
29 Nov Southwest Airlines

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

Skyscanner

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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