Cheapest one-way flights from Ontario to Barcelona in June from $613

AirHint found the following cheapest one-way flights from Ontario (ONT) to Barcelona (BCN) in June 2025 (see full year).

One-Way flights

30 Jun Air Canada
12 Jun Frontier Airlines
29 Jun British Airways
15 Jun Frontier Airlines
17 Jun Iberia
10 Jun Iberia
03 Jun British Airways
08 Jun British Airways
22 Jun Iberia
23 Jun British Airways

Also check the deals for return flights from Ontario to Barcelona in June.

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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