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

Return flights

28 Jul - 07 Aug	KLM
29 Jul - 01 Aug	Vueling Airlines
27 Jul - 05 Aug	KLM
29 Jul - 06 Aug	Lufthansa
30 Jul - 06 Aug	Vueling Airlines
29 Jul - 05 Aug	Lufthansa
27 Jul - 30 Jul	Air France
28 Jul - 04 Aug	KLM
29 Jul - 07 Aug	Lufthansa
27 Jul - 07 Aug	KLM
27 Jul - 06 Aug	KLM
28 Jul - 30 Jul	KLM
29 Jul - 30 Jul	Vueling Airlines
28 Jul - 29 Jul	Vueling Airlines
30 Jul - 31 Jul	Vueling Airlines
27 Jul - 28 Jul	Vueling Airlines

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

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 July from 233€

Return flights