Cheapest one-way flights from Ontario to San Francisco in November from $70

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

One-Way flights

01 Nov Frontier Airlines
03 Nov Frontier Airlines direct
02 Nov Frontier Airlines
06 Nov Frontier Airlines
07 Nov Frontier Airlines
10 Nov Frontier Airlines
13 Nov Frontier Airlines
04 Nov Southwest Airlines
05 Nov Southwest Airlines
19 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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