Cheapest return flights from Ontario to San Francisco in January from $67

Best time to book flights for Ontario (ONT) to San Francisco (SFO) flights at AirHint

AirHint found the following cheapest return flights from Ontario (ONT) to San Francisco (SFO) in January 2025 (see full year).

Return flights

23 Jan - 26 Jan Frontier Airlines direct
23 Jan - 27 Jan Frontier Airlines direct
23 Jan - 30 Jan Frontier Airlines direct
13 Jan - 17 Jan Frontier Airlines direct
24 Jan - 31 Jan Frontier Airlines direct
02 Jan - 06 Jan Frontier Airlines direct
05 Jan - 12 Jan Frontier Airlines direct
22 Jan - 26 Jan Frontier Airlines
27 Jan - 29 Jan Frontier Airlines
14 Jan - 16 Jan Frontier Airlines
21 Jan - 01 Feb Frontier Airlines

Also check the deals for one-way flights from Ontario to San Francisco in January.

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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