AirHint found the following cheapest return flights from Basel (BSL) to Warsaw (WAW) in April 2026 (see full year).

Return flights

06 Apr - 10 Apr	Wizz Air	direct
06 Apr - 09 Apr	Wizz Air	direct
05 Apr - 09 Apr	Lufthansa
06 Apr - 12 Apr	Wizz Air	direct
02 Apr - 06 Apr	KLM
05 Apr - 10 Apr	Wizz Air	direct
05 Apr - 09 Apr	Wizz Air	direct
05 Apr - 12 Apr	Wizz Air	direct
05 Apr - 06 Apr	Wizz Air	direct
02 Apr - 10 Apr	Wizz Air	direct

Also check the deals for one-way flights from Basel to Warsaw in April.

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 Basel to Warsaw in April from 155€

Return flights