Cheapest one-way flights from Ontario to Athens in May from $354

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

AirHint found the following cheapest one-way flights from Ontario (ONT) to Athens (ATH) in May 2025 (see full year).

One-Way flights

09 May Frontier Airlines
01 May Frontier Airlines
11 May British Airways
06 May British Airways
10 May British Airways
07 May Iberia
13 May British Airways
20 May British Airways
22 May Frontier Airlines
16 May jetBlue

Also check the deals for return flights from Ontario to Athens in May.

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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