Cheapest return flights from Ontario to Athens in June from $1141

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

Return flights

10 Jun - 17 Jun British Airways
09 Jun - 16 Jun British Airways
08 Jun - 18 Jun British Airways
29 Jun - 06 Jul British Airways
24 Jun - 01 Jul British Airways
02 Jun - 09 Jun British Airways
18 Jun - 25 Jun British Airways
11 Jun - 25 Jun British Airways
05 Jun - 18 Jun British Airways
04 Jun - 11 Jun British Airways
11 Jun - 18 Jun British Airways
05 Jun - 17 Jun British Airways
25 Jun - 02 Jul British Airways
25 Jun - 01 Jul British Airways
24 Jun - 22 Jul British Airways
26 Jun - 03 Jul British Airways
28 Jun - 05 Jul British Airways
30 Jun - 07 Jul British Airways
27 Jun - 04 Jul British Airways
17 Jun - 04 Jul Iberia

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