AirHint found the following cheapest return flights from Ontario (ONT) to Munich (MUC) in September 2025 (see full year).

Return flights

29 Sep - 14 Oct	United
09 Sep - 17 Sep	Iberia
20 Sep - 27 Sep	Iberia
19 Sep - 27 Sep	Iberia
07 Sep - 14 Sep	Virgin Atlantic
07 Sep - 15 Sep	Virgin Atlantic
03 Sep - 11 Sep	KLM
12 Sep - 19 Sep	KLM
13 Sep - 20 Sep	KLM
12 Sep - 20 Sep	KLM
13 Sep - 21 Sep	KLM
30 Sep - 08 Oct	KLM

Also check the deals for one-way flights from Ontario to Munich 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 Ontario to Munich in September from 684€

Return flights