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

Return flights

26 Aug - 02 Sep	Avianca
28 Aug - 04 Sep	Copa
21 Aug - 30 Aug	Avianca	direct
23 Aug - 30 Aug	Avianca	direct
19 Aug - 26 Aug	Avianca	direct
21 Aug - 28 Aug	Avianca	direct
20 Aug - 27 Aug	Avianca
25 Aug - 01 Sep	Avianca
30 Aug - 06 Sep	Avianca
27 Aug - 03 Sep	Avianca
13 Aug - 27 Aug	Porter Airlines (Canada) Ltd
18 Aug - 24 Aug	Porter Airlines (Canada) Ltd
29 Aug - 05 Sep	Copa
05 Aug - 20 Aug	Avianca
18 Aug - 25 Aug	Avianca
05 Aug - 19 Aug	Avianca
14 Aug - 11 Sep	Copa
14 Aug - 13 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 337€

Return flights