AirHint found the following cheapest return flights from San Jose Del Cabo (SJD) to Ontario (ONT) in December 2025 (see full year).

Return flights

04 Dec - 09 Dec	Southwest Airlines
11 Dec - 18 Dec	Southwest Airlines
12 Dec - 19 Dec	Delta
17 Dec - 24 Dec	Delta
30 Dec - 04 Jan	Southwest Airlines
15 Dec - 22 Dec	Southwest Airlines
14 Dec - 21 Dec	Southwest Airlines

Also check the deals for one-way flights from San Jose Del Cabo to Ontario in December.

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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Cheapest return flights from San Jose Del Cabo to Ontario in December from $377

Return flights