Cheapest return flights from Ontario to Lisbon in June from $737

AirHint found the following cheapest return flights from Ontario (ONT) to Lisbon (LIS) in June 2026 (see full year).

Return flights

15 Jun - 24 Jun British Airways
15 Jun - 25 Jun British Airways
10 Jun - 16 Jun British Airways
10 Jun - 21 Jun British Airways
11 Jun - 02 Jul British Airways
12 Jun - 03 Jul British Airways
21 Jun - 30 Jun British Airways
08 Jun - 30 Jun British Airways
21 Jun - 01 Jul British Airways
11 Jun - 19 Jun British Airways
15 Jun - 21 Jul British Airways
30 Jun - 07 Jul British Airways
11 Jun - 22 Jun British Airways
06 Jun - 20 Jun British Airways
22 Jun - 02 Jul British Airways
27 Jun - 04 Jul British Airways
27 Jun - 03 Jul British Airways
13 Jun - 24 Jun British Airways
23 Jun - 03 Jul British Airways
20 Jun - 03 Jul British Airways

Also check the deals for one-way flights from Ontario to Lisbon 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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