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

Return flights

03 Sep - 10 Sep	Air Canada
10 Sep - 17 Sep	FrenchBee
29 Sep - 06 Oct	FrenchBee
21 Sep - 11 Oct	FrenchBee
28 Sep - 05 Oct	FrenchBee
19 Sep - 26 Sep	FrenchBee
08 Sep - 15 Sep	FrenchBee
21 Sep - 27 Sep	FrenchBee
12 Sep - 19 Sep	FrenchBee
05 Sep - 12 Sep	Porter Airlines (Canada) Ltd
21 Sep - 28 Sep	FrenchBee
24 Sep - 01 Oct	FrenchBee
14 Sep - 21 Sep	FrenchBee
08 Sep - 04 Oct	FrenchBee
22 Sep - 26 Sep	FrenchBee
30 Sep - 07 Oct	WestJet
26 Sep - 03 Oct	FrenchBee
25 Sep - 10 Oct	Air Transat
28 Sep - 18 Oct	FrenchBee
18 Sep - 16 Oct	Air Transat

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 522€

Return flights