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

Return flights

08 May - 23 May	FrenchBee
29 May - 05 Jun	FrenchBee
05 May - 12 May	Air France
15 May - 22 May	Air France
17 May - 24 May	Air France
19 May - 26 May	Air France
21 May - 28 May	Air France
23 May - 30 May	Air France
04 May - 11 May	Air France
06 May - 13 May	Air France
08 May - 15 May	Air France
01 May - 01 Jun	KLM
20 May - 10 Jun	Air France
25 May - 01 Jun	Air Canada	direct
27 May - 03 Jun	Air Canada	direct
26 May - 02 Jun	Air Canada	direct
28 May - 04 Jun	Air France
16 May - 04 Jun	Air Canada	direct
01 May - 01 Jun	Lufthansa	direct
28 May - 04 Jun	Lufthansa	direct

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 616€

Return flights