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

Return flights

29 Sep - 06 Oct	Air Transat
29 Sep - 13 Oct	Air Transat
22 Sep - 26 Sep	Air Canada	direct
23 Sep - 30 Sep	Air Canada	direct
19 Sep - 26 Sep	KLM	direct
22 Sep - 29 Sep	Air Canada	direct
21 Sep - 29 Sep	Air Canada	direct
24 Sep - 06 Oct	Air Canada	direct
30 Sep - 07 Oct	Air Canada	direct
23 Sep - 07 Oct	Air Canada	direct
24 Sep - 15 Oct	Air Canada	direct
24 Sep - 01 Oct	Air Canada	direct
26 Sep - 03 Oct	KLM	direct
29 Sep - 06 Oct	Air Canada	direct
30 Sep - 15 Oct	Lufthansa	direct
19 Sep - 23 Sep	Air Canada
18 Sep - 21 Sep	Delta
20 Sep - 29 Sep	Air Canada
19 Sep - 27 Sep	KLM
20 Sep - 27 Sep	Air Canada

Also check the deals for one-way flights from Montreal to Amsterdam 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 Amsterdam in September from 450€

Return flights