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

Return flights

14 Sep - 21 Sep	FrenchBee
29 Sep - 06 Oct	Air Transat
15 Sep - 22 Sep	Air Transat
28 Sep - 05 Oct	KLM
16 Sep - 23 Sep	Air Transat
01 Sep - 08 Sep	Air Transat
24 Sep - 01 Oct	Air Transat
17 Sep - 24 Sep	Air Transat
04 Sep - 11 Sep	TAP
22 Sep - 29 Sep	FrenchBee
08 Sep - 15 Sep	Air Transat
09 Sep - 16 Sep	Air Transat
06 Sep - 13 Sep	KLM
25 Sep - 02 Oct	KLM
26 Sep - 03 Oct	FrenchBee
27 Sep - 04 Oct	Air Transat
30 Sep - 07 Oct	Lufthansa

Also check the deals for one-way flights from Montreal to Alicante in September.

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 September from $596

Return flights