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

Return flights

03 Dec - 10 Dec	British Airways
01 Dec - 08 Dec	Iberia
08 Dec - 15 Dec	British Airways
04 Dec - 15 Dec	British Airways
05 Dec - 12 Dec	British Airways
10 Dec - 17 Dec	British Airways
16 Dec - 23 Dec	Iberia
11 Dec - 30 Dec	Iberia
15 Dec - 22 Dec	British Airways
22 Dec - 04 Jan	Frontier Airlines
23 Dec - 30 Dec	British Airways
23 Dec - 05 Jan	British Airways
29 Dec - 05 Jan	British Airways

Also check the deals for one-way flights from Ontario to Geneva 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 Geneva in December from $876

Return flights