Cheapest return flights from Ontario to San Francisco in January from $35

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

17 Jan - 19 Jan Frontier Airlines direct
19 Jan - 19 Jan Frontier Airlines direct
10 Jan - 13 Jan Frontier Airlines direct
10 Jan - 12 Jan Frontier Airlines direct
24 Jan - 26 Jan Frontier Airlines direct
19 Jan - 20 Jan Frontier Airlines direct
13 Jan - 13 Jan Frontier Airlines direct
12 Jan - 12 Jan Frontier Airlines direct
27 Jan - 31 Jan Frontier Airlines direct
17 Jan - 20 Jan Frontier Airlines direct
26 Jan - 02 Feb Frontier Airlines direct
31 Jan - 02 Feb Frontier Airlines direct
22 Jan - 14 Feb Frontier Airlines
28 Jan - 03 Feb Frontier Airlines
31 Jan - 01 Feb Frontier Airlines
30 Jan - 15 Feb Frontier Airlines
16 Jan - 12 Feb Frontier Airlines
30 Jan - 03 Feb Southwest Airlines
01 Jan - 15 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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