AirHint found the following cheapest return flights from Montreal (YUL) to San Salvador (SAL) in August 2025 (see full year).

Return flights

25 Aug - 09 Sep	Avianca
19 Aug - 26 Aug	Copa
26 Aug - 02 Sep	Avianca
30 Aug - 06 Sep	Avianca
27 Aug - 03 Sep	Avianca
14 Aug - 21 Aug	Avianca
28 Aug - 04 Sep	Copa
26 Aug - 30 Aug	American Airlines
09 Aug - 12 Aug	Porter Airlines (Canada) Ltd
23 Aug - 27 Aug	Avianca
24 Aug - 27 Aug	Avianca
12 Aug - 16 Aug	Porter Airlines (Canada) Ltd
12 Aug - 23 Aug	Porter Airlines (Canada) Ltd
12 Aug - 21 Aug	Porter Airlines (Canada) Ltd
16 Aug - 23 Aug	Porter Airlines (Canada) Ltd
25 Aug - 01 Sep	Avianca
29 Aug - 05 Sep	Copa

Also check the deals for one-way flights from Montreal to San Salvador in August.

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 Montreal to San Salvador in August from 301€

Return flights