AirHint found the following cheapest return flights from Montreal (YUL) to Athens (ATH) in October 2025 (see full year).

Return flights

01 Oct - 22 Oct	FrenchBee
06 Oct - 10 Oct	FrenchBee
01 Oct - 12 Oct	FrenchBee
05 Oct - 15 Oct	FrenchBee
01 Oct - 08 Oct	FrenchBee
15 Oct - 22 Oct	FrenchBee
13 Oct - 20 Oct	FrenchBee
01 Oct - 16 Oct	FrenchBee
01 Oct - 11 Oct	FrenchBee
01 Oct - 06 Oct	FrenchBee
28 Oct - 05 Nov	British Airways
28 Oct - 06 Nov	British Airways
28 Oct - 04 Nov	British Airways
30 Oct - 06 Nov	Air Transat
27 Oct - 03 Nov	British Airways
29 Oct - 05 Nov	British Airways
19 Oct - 02 Nov	Air France
29 Oct - 05 Nov	Air Canada	direct
31 Oct - 07 Nov	Air Canada	direct
25 Oct - 01 Nov	Air Transat

Also check the deals for one-way flights from Montreal to Athens in October.

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 Montreal to Athens in October from $551

Return flights