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

One-Way flights

14 Dec	easyJet
07 Dec	Vueling Airlines
31 Dec	Vueling Airlines
21 Dec	easyJet
06 Dec	Vueling Airlines
18 Dec	Vueling Airlines
25 Dec	Vueling Airlines
29 Dec	Vueling Airlines
28 Dec	Vueling Airlines
26 Dec	Vueling Airlines

Also check the deals for return 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 one-way flights from Bilbao to Athens in December from $69

One-Way flights