AirHint found the following cheapest return flights from Berlin (BER) to Basel (BSL) in September 2025 (see full year).

Return flights

02 Sep - 16 Sep	easyJet	direct
04 Sep - 09 Sep	easyJet	direct
05 Sep - 09 Sep	easyJet	direct
25 Sep - 01 Oct	easyJet	direct
30 Sep - 04 Oct	easyJet	direct
09 Sep - 18 Sep	easyJet	direct
26 Sep - 01 Oct	easyJet	direct
18 Sep - 22 Sep	easyJet	direct
18 Sep - 26 Sep	easyJet	direct
06 Sep - 10 Oct	easyJet	direct
11 Sep - 12 Sep	easyJet	direct
19 Sep - 22 Sep	easyJet	direct
16 Sep - 16 Sep	easyJet
12 Sep - 13 Sep	easyJet	direct

Also check the deals for one-way flights from Berlin to Basel in September.

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 Berlin to Basel in September from 71€

Return flights