AirHint found the following cheapest return flights from Ontario (ONT) to Barcelona (BCN) in January 2026 (see full year).

Return flights

18 Jan - 07 Feb	Frontier Airlines
20 Jan - 27 Jan	Iberia
13 Jan - 20 Jan	British Airways
14 Jan - 28 Jan	British Airways
09 Jan - 16 Jan	British Airways
23 Jan - 30 Jan	Iberia
12 Jan - 19 Jan	Iberia
08 Jan - 13 Jan	British Airways
08 Jan - 15 Jan	British Airways
11 Jan - 18 Jan	British Airways
11 Jan - 31 Jan	British Airways
20 Jan - 14 Feb	British Airways
26 Jan - 02 Feb	Iberia
30 Jan - 06 Feb	Iberia
12 Jan - 07 Feb	British Airways
19 Jan - 02 Feb	Iberia
11 Jan - 01 Feb	British Airways
30 Jan - 01 Feb	Iberia
31 Jan - 07 Feb	Iberia
29 Jan - 01 Feb	British Airways

Also check the deals for one-way flights from Ontario to Barcelona in January.

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 Barcelona in January from $530

Return flights