Cheapest return flights from Ontario to Athens in August from $932

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

Return flights

21 Aug - 30 Aug Finnair
27 Aug - 03 Sep Austrian Airlines
27 Aug - 05 Sep Austrian Airlines
28 Aug - 04 Sep Austrian Airlines
19 Aug - 27 Aug Austrian Airlines
27 Aug - 30 Aug KLM
26 Aug - 30 Aug KLM
31 Aug - 02 Sep Austrian Airlines

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.

Book a cheap hotel in Athens

Cheap car rent in Athens

Feel free to contact us with any feedback or request another flight research.