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

Return flights

07 Aug - 22 Aug	Austrian Airlines
06 Aug - 13 Aug	Austrian Airlines
28 Aug - 02 Sep	Ryanair
04 Aug - 12 Aug	easyJet
25 Aug - 29 Aug	Wizz Air
29 Aug - 01 Sep	Ryanair
12 Aug - 17 Aug	Austrian Airlines
22 Aug - 26 Aug	Wizz Air
11 Aug - 18 Aug	easyJet
04 Aug - 08 Aug	Lufthansa
01 Aug - 10 Aug	Austrian Airlines
15 Aug - 22 Aug	Wizz Air
25 Aug - 01 Sep	Wizz Air
29 Aug - 01 Sep	easyJet	direct
25 Aug - 01 Sep	easyJet	direct

Also check the deals for one-way flights from Athens to Basel 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 Athens to Basel in August from 181€

Return flights