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

Return flights

26 Sep - 28 Sep	Lufthansa
19 Sep - 21 Sep	Lufthansa
25 Sep - 28 Sep	Lufthansa
18 Sep - 21 Sep	Lufthansa
12 Sep - 14 Sep	Lufthansa
11 Sep - 15 Sep	Lufthansa
04 Sep - 08 Sep	Condor
05 Sep - 08 Sep	Eurowings
05 Sep - 12 Sep	Lufthansa
06 Sep - 13 Sep	Lufthansa

Also check the deals for one-way flights from Leipzig 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 Leipzig to Basel in September from 256€

Return flights