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

Return flights

29 Sep - 06 Oct	FrenchBee
21 Sep - 11 Oct	FrenchBee
21 Sep - 24 Sep	FrenchBee
28 Sep - 05 Oct	FrenchBee
24 Sep - 01 Oct	FrenchBee
22 Sep - 24 Sep	FrenchBee
21 Sep - 29 Sep	FrenchBee
22 Sep - 29 Sep	FrenchBee
24 Sep - 26 Sep	FrenchBee
30 Sep - 10 Oct	Air Transat
29 Sep - 25 Oct	FrenchBee
23 Sep - 29 Sep	Air Transat
23 Sep - 01 Oct	WestJet
23 Sep - 30 Sep	SWISS
22 Sep - 30 Sep	SWISS
21 Sep - 30 Sep	SWISS
30 Sep - 07 Oct	WestJet
21 Sep - 28 Sep	FrenchBee
26 Sep - 03 Oct	FrenchBee
30 Sep - 25 Oct	Air Canada

Also check the deals for one-way flights from Montreal to Berlin 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 Berlin in September from $598

Return flights