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

Return flights

10 Dec - 24 Dec	Iberia
05 Dec - 12 Dec	Iberia
07 Dec - 14 Dec	Iberia
07 Dec - 15 Dec	Iberia
04 Dec - 12 Dec	Iberia
04 Dec - 08 Dec	Iberia
04 Dec - 14 Dec	Iberia
05 Dec - 15 Dec	Iberia
06 Dec - 14 Dec	Iberia
07 Dec - 21 Dec	British Airways
13 Dec - 03 Jan	Iberia
29 Dec - 05 Jan	British Airways
27 Dec - 05 Jan	British Airways
19 Dec - 01 Jan	British Airways
18 Dec - 01 Jan	British Airways
20 Dec - 01 Jan	British Airways
21 Dec - 04 Jan	British Airways
26 Dec - 05 Jan	British Airways
26 Dec - 02 Jan	British Airways
20 Dec - 03 Jan	British Airways

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

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 December from 408€

Return flights