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

Return flights

30 Sep - 11 Oct	Qatar Airways
18 Sep - 11 Oct	Qatar Airways
18 Sep - 04 Oct	Qatar Airways
19 Sep - 04 Oct	Qatar Airways
07 Sep - 01 Oct	Iberia
02 Sep - 01 Oct	Qatar Airways
15 Sep - 26 Sep	Qatar Airways
05 Sep - 01 Oct	Qatar Airways
09 Sep - 10 Oct	Qatar Airways
11 Sep - 10 Oct	Qatar Airways
28 Sep - 22 Oct	Qatar Airways
08 Sep - 30 Sep	Qatar Airways
03 Sep - 28 Sep	Qatar Airways
01 Sep - 30 Sep	Qatar Airways
03 Sep - 22 Sep	Qatar Airways

Also check the deals for one-way flights from Ontario to Yerevan 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 Yerevan in September from $1049

Return flights