Cheapest return flights from Ontario to Athens in August from $662

Best time to book flights for Ontario (ONT) to Athens (ATH) flights at AirHint

AirHint found the following cheapest return flights from Ontario (ONT) to Athens (ATH) in August 2025 (see full year).

Return flights

19 Aug - 28 Aug Air France
19 Aug - 29 Aug Air France
15 Aug - 29 Aug KLM
17 Aug - 24 Aug United
19 Aug - 26 Aug KLM
19 Aug - 27 Aug KLM
20 Aug - 29 Aug KLM
12 Aug - 19 Aug KLM
19 Aug - 24 Sep Air France
16 Aug - 26 Aug KLM
20 Aug - 27 Aug KLM
26 Aug - 23 Sep KLM
17 Aug - 15 Sep British Airways
29 Aug - 09 Sep KLM
23 Aug - 13 Sep KLM
01 Aug - 03 Sep KLM
29 Aug - 06 Sep KLM
27 Aug - 08 Sep KLM
30 Aug - 14 Sep KLM
29 Aug - 13 Sep KLM

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

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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