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

Return flights

08 Sep - 15 Sep	FrenchBee
21 Sep - 28 Sep	FrenchBee
22 Sep - 29 Sep	FrenchBee
07 Sep - 14 Sep	FrenchBee
10 Sep - 17 Sep	FrenchBee
14 Sep - 21 Sep	FrenchBee
28 Sep - 05 Oct	FrenchBee
24 Sep - 01 Oct	FrenchBee
29 Sep - 06 Oct	FrenchBee
19 Sep - 26 Sep	FrenchBee
12 Sep - 19 Sep	FrenchBee
03 Sep - 10 Sep	FrenchBee
01 Sep - 08 Sep	Air Transat
14 Sep - 03 Oct	FrenchBee
26 Sep - 03 Oct	FrenchBee
25 Sep - 02 Oct	Air Transat
27 Sep - 04 Oct	Air Transat
30 Sep - 07 Oct	Air Canada
18 Sep - 02 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.

Book a cheap hotel in Berlin

Cheap car rent in Berlin

Cheapest return flights from Montreal to Berlin in September from $569

Return flights