Cheapest return flights from Ontario to Barcelona in June from $1015

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 June 2025 (see full year).

Return flights

09 Jun - 16 Jun jetBlue
22 Jun - 03 Jul British Airways
24 Jun - 03 Jul British Airways
30 Jun - 09 Jul British Airways
28 Jun - 10 Jul British Airways
08 Jun - 17 Jun British Airways
05 Jun - 11 Jun British Airways
07 Jun - 26 Jun British Airways
05 Jun - 03 Jul British Airways
30 Jun - 07 Jul British Airways
24 Jun - 01 Jul British Airways
07 Jun - 17 Jun British Airways
05 Jun - 09 Jun British Airways
13 Jun - 25 Jun Iberia
04 Jun - 18 Jun Iberia
05 Jun - 12 Jun Iberia
04 Jun - 11 Jun Iberia
13 Jun - 08 Jul Iberia
17 Jun - 08 Jul British Airways
29 Jun - 30 Jul British Airways

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

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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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