Cheapest return flights from Ontario to San Salvador in December from $427

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

Return flights

02 Dec - 06 Dec American Airlines
11 Dec - 20 Dec Avianca direct
02 Dec - 06 Dec Avianca direct
02 Dec - 07 Dec Avianca direct
16 Dec - 20 Dec Avianca direct
27 Dec - 17 Jan Avianca direct
30 Dec - 11 Jan Frontier Airlines
30 Dec - 08 Jan Frontier Airlines
29 Dec - 08 Jan Frontier Airlines
24 Dec - 11 Jan Frontier Airlines
25 Dec - 27 Dec Avianca direct
06 Dec - 10 Jan Avianca direct
29 Dec - 10 Jan American Airlines
30 Dec - 11 Jan Avianca direct
25 Dec - 15 Jan Avianca direct
14 Dec - 28 Dec Avianca direct
14 Dec - 30 Dec Avianca direct
18 Dec - 23 Dec Frontier Airlines
25 Dec - 10 Jan Avianca direct
18 Dec - 23 Dec Avianca direct

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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