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

Return flights

28 Aug - 10 Sep	Vueling Airlines
26 Aug - 09 Sep	Wizz Air
27 Aug - 15 Sep	Vueling Airlines
26 Aug - 02 Sep	Wizz Air
28 Aug - 04 Sep	Vueling Airlines
27 Aug - 08 Sep	Vueling Airlines
28 Aug - 02 Sep	Vueling Airlines
28 Aug - 17 Sep	Vueling Airlines
29 Aug - 08 Sep	Iberia
26 Aug - 04 Sep	Wizz Air
12 Aug - 19 Aug	Lufthansa
19 Aug - 28 Aug	Wizz Air
21 Aug - 26 Aug	Volotea
25 Aug - 28 Aug	Air Europa
14 Aug - 18 Aug	Vueling Airlines
20 Aug - 28 Aug	Wizz Air Malta
21 Aug - 28 Aug	Volotea
05 Aug - 12 Aug	Volotea
06 Aug - 27 Aug	Vueling Airlines
25 Aug - 31 Aug	Air Europa

Also check the deals for one-way flights from Bilbao to Athens in August.

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 August from 177€

Return flights