AirHint found the following cheapest return flights from Ontario (ONT) to Rome (FCO) in October 2025 (see full year).

Return flights

02 Oct - 09 Oct	British Airways
20 Oct - 11 Nov	SWISS
28 Oct - 06 Nov	Iberia
30 Oct - 13 Nov	British Airways
30 Oct - 22 Nov	Iberia
30 Oct - 21 Nov	British Airways
28 Oct - 09 Nov	Iberia
25 Oct - 06 Nov	Iberia
31 Oct - 22 Nov	Iberia
29 Oct - 22 Nov	British Airways
23 Oct - 31 Oct	Iberia
30 Oct - 09 Nov	Iberia
13 Oct - 24 Oct	British Airways
22 Oct - 30 Oct	British Airways
07 Oct - 16 Oct	Iberia
13 Oct - 22 Oct	SWISS
04 Oct - 17 Oct	Iberia
11 Oct - 24 Oct	British Airways
23 Oct - 26 Oct	British Airways
01 Oct - 15 Oct	Iberia

Also check the deals for one-way flights from Ontario to Rome in October.

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 Rome in October from $608

Return flights