Cheapest return flights from Frankfurt to Basel in September from 140€

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

Return flights

07 Sep - 12 Sep Lufthansa direct
22 Sep - 27 Sep Air Dolomiti direct
19 Sep - 21 Sep Air Dolomiti direct
06 Sep - 13 Sep Air Dolomiti direct
01 Sep - 05 Sep Air Dolomiti direct
04 Sep - 11 Sep Air Dolomiti direct
01 Sep - 10 Sep Air Dolomiti direct
15 Sep - 16 Sep Wizz Air Malta
15 Sep - 16 Sep Air Dolomiti direct
07 Sep - 14 Sep Ryanair

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

Skyscanner

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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