AirHint found the following cheapest return flights from Ottawa (YOW) to Athens (ATH) in October 2025 (see full year).
Return flights
| 28 Oct - 22 Nov | Air Canada | ||
| 25 Oct - 15 Nov | Porter Airlines (Canada) Ltd | ||
| 22 Oct - 29 Oct | Air Canada |
Also check the deals for one-way flights from Ottawa to Athens in October.
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