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

Return flights

16 Aug - 19 Aug	Ryanair
17 Aug - 22 Aug	Ryanair
26 Aug - 02 Sep	Ryanair
06 Aug - 08 Aug	Ryanair
17 Aug - 21 Aug	Ryanair
26 Aug - 28 Aug	Ryanair
24 Aug - 28 Aug	Ryanair
05 Aug - 19 Aug	Ryanair
05 Aug - 12 Aug	Ryanair
16 Aug - 21 Aug	Ryanair
26 Aug - 30 Aug	Ryanair

Also check the deals for one-way flights from Warsaw 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 Warsaw to Basel in August from 276€

Return flights