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

Return flights

26 Dec - 29 Dec	Lufthansa	direct
24 Dec - 28 Dec	Lufthansa	direct
26 Dec - 28 Dec	Lufthansa	direct
24 Dec - 31 Dec	Ryanair
27 Dec - 30 Dec	Lufthansa	direct
24 Dec - 31 Dec	Lufthansa	direct
23 Dec - 30 Dec	Lufthansa	direct
24 Dec - 27 Dec	Lufthansa	direct
31 Dec - 02 Jan	Ryanair
28 Dec - 31 Dec	Wizz Air Malta
22 Dec - 05 Jan	Lufthansa	direct
28 Dec - 01 Jan	Lufthansa	direct
20 Dec - 24 Dec	Lufthansa
31 Dec - 02 Jan	Lufthansa	direct

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

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 Frankfurt to Basel in December from 184€

Return flights