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

Return flights

18 Aug - 03 Sep	Air Transat
31 Aug - 07 Sep	KLM
25 Aug - 01 Sep	Air Transat
28 Aug - 04 Sep	Air Transat
26 Aug - 02 Sep	FrenchBee
22 Aug - 07 Sep	KLM
27 Aug - 03 Sep	Porter Airlines (Canada) Ltd
21 Aug - 28 Aug	Air Transat
18 Aug - 26 Aug	Porter Airlines (Canada) Ltd
30 Aug - 06 Sep	Porter Airlines (Canada) Ltd
29 Aug - 05 Sep	FrenchBee
24 Aug - 31 Aug	WestJet
17 Aug - 26 Aug	Air Transat
20 Aug - 27 Aug	Air Transat
18 Aug - 25 Aug	Air Transat
17 Aug - 24 Aug	Air Transat
04 Aug - 11 Aug	Air Transat
12 Aug - 19 Aug	Air Transat
12 Aug - 18 Aug	Air Transat

Also check the deals for one-way flights from Montreal to Alicante 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 Alicante in August from $604

Return flights