Cheapest return flights from Ontario to San Salvador in December from 756€

AirHint found the following cheapest return flights from Ontario (ONT) to San Salvador (SAL) in December 2025 (see full year).

Return flights

18 Dec - 16 Jan Frontier Airlines
21 Dec - 06 Jan Volaris
21 Dec - 06 Jan Avianca direct
20 Dec - 27 Dec Volaris
21 Dec - 04 Jan Volaris
20 Dec - 05 Jan Volaris
20 Dec - 27 Dec Avianca direct
19 Dec - 27 Dec Frontier Airlines
21 Dec - 04 Jan Avianca direct
18 Dec - 03 Jan Avianca
30 Dec - 03 Jan Frontier Airlines

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

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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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