AirHint found the following cheapest return flights from Bilbao (BIO) to Athens (ATH) in August 2026 (see full year).

Return flights

04 Aug - 11 Aug	Aegean Airlines
18 Aug - 28 Aug	Aegean Airlines	direct
18 Aug - 25 Aug	Aegean Airlines	direct
04 Aug - 11 Aug	Aegean Airlines	direct
02 Aug - 09 Aug	Aegean Airlines	direct
07 Aug - 18 Aug	Aegean Airlines	direct
23 Aug - 31 Aug	easyJet
12 Aug - 22 Aug	Iberia
16 Aug - 24 Aug	easyJet
07 Aug - 16 Aug	easyJet

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 234€

Return flights