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

Return flights

11 Sep - 18 Sep	KLM
16 Sep - 23 Sep	KLM
10 Sep - 17 Sep	KLM
30 Sep - 07 Oct	KLM
08 Sep - 15 Sep	KLM
29 Sep - 06 Oct	KLM
04 Sep - 11 Sep	KLM
17 Sep - 24 Sep	KLM
25 Sep - 02 Oct	KLM
09 Sep - 16 Sep	KLM
15 Sep - 22 Sep	KLM
02 Sep - 09 Sep	Air France
24 Sep - 01 Oct	KLM
18 Sep - 25 Sep	KLM
11 Sep - 11 Oct	KLM
28 Sep - 05 Oct	Emirates
27 Sep - 04 Oct	KLM
26 Sep - 03 Oct	Emirates

Also check the deals for one-way flights from Montreal to Antananarivo 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 Antananarivo in September from 1127€

Return flights