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

Return flights

04 May - 17 May	Delta
19 May - 29 May	Delta
05 May - 13 May	Air France
05 May - 18 May	Air France
09 May - 22 May	Air France
05 May - 12 May	Air France
05 May - 19 May	Air France
05 May - 26 May	Air France
12 May - 26 May	Air France
09 May - 17 May	Air France
01 May - 19 Jun	Air Transat
23 May - 05 Jun	Air Transat
24 May - 08 Jun	Air France
25 May - 08 Jun	Delta
25 May - 10 Jun	Delta
18 May - 08 Jun	Delta
27 May - 08 Jun	Air Transat
19 May - 02 Jun	Air France
05 May - 02 Jun	Air France
26 May - 16 Jun	Air France

Also check the deals for one-way flights from Toronto 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 Toronto to Athens in May from 477€

Return flights