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

Return flights

01 Dec - 16 Dec	Lufthansa
09 Dec - 23 Dec	Virgin Atlantic
10 Dec - 24 Dec	Virgin Atlantic
01 Dec - 08 Dec	KLM
03 Dec - 10 Dec	Virgin Atlantic
10 Dec - 07 Jan	Frontier Airlines
02 Dec - 09 Dec	Frontier Airlines
27 Dec - 17 Jan	Frontier Airlines
26 Dec - 17 Jan	Frontier Airlines
15 Dec - 05 Jan	Frontier Airlines
17 Dec - 07 Jan	Aer Lingus
09 Dec - 04 Jan	Frontier Airlines
16 Dec - 30 Dec	Frontier Airlines
16 Dec - 06 Jan	Frontier Airlines
30 Dec - 03 Jan	Frontier Airlines

Also check the deals for one-way flights from Cleveland 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 Cleveland to Athens in December from 366€

Return flights