Cheapest return flights from Ontario to Barcelona in October from $622

Best time to book flights for Ontario (ONT) to Barcelona (BCN) flights at AirHint

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

Return flights

13 Oct - 22 Oct United
15 Oct - 24 Oct British Airways
15 Oct - 23 Oct Iberia
04 Oct - 15 Oct Iberia
07 Oct - 21 Oct Iberia
15 Oct - 22 Oct Iberia
08 Oct - 22 Oct Iberia
06 Oct - 13 Oct Iberia
08 Oct - 13 Oct Iberia
05 Oct - 09 Oct Iberia

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

Skyscanner

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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