Cheapest return flights from Ontario to Athens in April from $593

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

Return flights

15 Apr - 22 Apr British Airways
08 Apr - 23 Apr British Airways
22 Apr - 01 May British Airways
29 Apr - 13 May British Airways
20 Apr - 27 Apr British Airways
20 Apr - 04 May British Airways
23 Apr - 07 May British Airways
11 Apr - 18 Apr British Airways
03 Apr - 13 Apr British Airways
18 Apr - 09 May British Airways
02 Apr - 11 Apr British Airways

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

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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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