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

Return flights

05 Sep - 12 Sep	FrenchBee
15 Sep - 22 Sep	FrenchBee
03 Sep - 10 Sep	FrenchBee
01 Sep - 08 Sep	Air Transat
22 Sep - 29 Sep	FrenchBee
10 Sep - 17 Sep	Air Transat
08 Sep - 15 Sep	FrenchBee
24 Sep - 01 Oct	Air Transat
02 Sep - 09 Sep	Air Transat
16 Sep - 23 Sep	Air Transat
30 Sep - 07 Oct	KLM
12 Sep - 19 Sep	FrenchBee
29 Sep - 06 Oct	Air Transat
26 Sep - 03 Oct	FrenchBee
27 Sep - 04 Oct	Air Transat
28 Sep - 05 Oct	Air Transat
25 Sep - 02 Oct	KLM

Also check the deals for one-way flights from Montreal to Ibiza 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 Ibiza in September from $544

Return flights