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

Return flights

10 Dec - 14 Dec	easyJet
03 Dec - 07 Dec	easyJet
02 Dec - 06 Dec	easyJet
09 Dec - 14 Dec	Volotea
01 Dec - 06 Dec	easyJet
20 Dec - 07 Jan	Volotea
01 Dec - 05 Dec	Volotea
02 Dec - 07 Dec	easyJet
08 Dec - 15 Dec	Vueling Airlines
06 Dec - 14 Dec	Wizz Air
01 Dec - 07 Dec	easyJet
19 Dec - 07 Jan	Volotea
22 Dec - 09 Jan	Vueling Airlines
22 Dec - 12 Jan	Vueling Airlines
22 Dec - 10 Jan	Vueling Airlines
22 Dec - 11 Jan	Vueling Airlines
21 Dec - 08 Jan	Vueling Airlines
31 Dec - 05 Jan	easyJet
21 Dec - 09 Jan	Vueling Airlines
21 Dec - 10 Jan	Vueling Airlines

Also check the deals for one-way flights from Bilbao 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 Bilbao to Athens in December from 118€

Return flights