AirHint found the following cheapest return flights from Montreal (YUL) to Athens (ATH) in May 2026 (see full year).

Return flights

06 May - 13 May	Delta
05 May - 12 May	Delta
08 May - 15 May	Air France
27 May - 03 Jun	FrenchBee
27 May - 07 Jun	FrenchBee
18 May - 02 Jun	FrenchBee
23 May - 29 May	Air Transat	direct
30 May - 12 Jun	Air Transat	direct
23 May - 05 Jun	Air Transat	direct
08 May - 22 May	Air France
11 May - 28 May	Air France
05 May - 19 May	Air France
17 May - 24 May	FrenchBee
27 May - 10 Jun	FrenchBee
29 May - 13 Jun	FrenchBee
09 May - 16 May	Air Transat
23 May - 30 May	Air Transat
23 May - 06 Jun	Air Transat
30 May - 06 Jun	Air Transat
24 May - 03 Jun	FrenchBee

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

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 May from 500€

Return flights