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

Return flights

14 Sep - 20 Sep	Condor
15 Sep - 29 Sep	Condor
10 Sep - 24 Sep	Condor
18 Sep - 29 Sep	Condor
22 Sep - 24 Sep	Condor
11 Sep - 22 Sep	Condor
09 Sep - 22 Sep	Condor
15 Sep - 22 Sep	Condor
17 Sep - 29 Sep	Condor
26 Sep - 06 Oct	Condor
14 Sep - 20 Sep	Air Canada	direct
29 Sep - 08 Oct	Condor
29 Sep - 12 Oct	Condor
15 Sep - 02 Oct	Air Canada
23 Sep - 05 Oct	Air Canada
23 Sep - 04 Oct	Air Canada
24 Sep - 02 Oct	Air Canada
10 Sep - 04 Oct	Lufthansa
20 Sep - 04 Oct	Brussels Airlines	direct
27 Sep - 25 Oct	Brussels Airlines

Also check the deals for one-way flights from Frankfurt to Montreal 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 Frankfurt to Montreal in September from 510€

Return flights