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

Return flights

16 Jul - 23 Jul	Iberia
30 Jul - 06 Aug	British Airways
25 Jul - 01 Aug	Air Canada
07 Jul - 14 Jul	British Airways
21 Jul - 28 Jul	British Airways
23 Jul - 30 Jul	Iberia
31 Jul - 07 Aug	British Airways
17 Jul - 24 Jul	British Airways
07 Jul - 21 Jul	Iberia
09 Jul - 16 Jul	British Airways
25 Jul - 31 Jul	Iberia
15 Jul - 24 Jul	Iberia
29 Jul - 05 Aug	British Airways
22 Jul - 29 Jul	British Airways
28 Jul - 04 Aug	Iberia
22 Jul - 03 Aug	Iberia

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

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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Cheapest return flights from Ontario to Athens in July from 805€

Return flights