AirHint found the following cheapest return flights from Toronto (YYZ) to Athens (ATH) in December 2025 (see full year).

Return flights

04 Dec - 11 Dec	Air France
01 Dec - 05 Dec	KLM
01 Dec - 07 Dec	KLM
04 Dec - 08 Dec	Air France
02 Dec - 09 Dec	Delta
02 Dec - 10 Dec	Flair Airlines
03 Dec - 09 Dec	Condor
14 Dec - 22 Jan	Delta
11 Dec - 27 Dec	Scandinavian Airlines
07 Dec - 27 Dec	Scandinavian Airlines
11 Dec - 09 Jan	Azores Airlines
15 Dec - 10 Jan	Scandinavian Airlines
10 Dec - 07 Jan	WestJet
14 Dec - 21 Dec	Air Transat
30 Dec - 07 Jan	Azores Airlines
15 Dec - 12 Jan	WestJet
12 Dec - 22 Jan	Flair Airlines
15 Dec - 22 Jan	Scandinavian Airlines
15 Dec - 15 Jan	Delta
22 Dec - 13 Jan	Delta

Also check the deals for one-way flights from Toronto to Athens in December.

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 December from 552€

Return flights