Cheapest return flights from Basel to Helsinki in December from $340

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

Return flights

30 Dec - 08 Jan Wizz Air Malta
30 Dec - 07 Jan Wizz Air Malta
25 Dec - 31 Dec KLM
29 Dec - 05 Jan KLM
29 Dec - 02 Jan SunExpress
28 Dec - 31 Dec Wizz Air Malta
26 Dec - 02 Jan Wizz Air
28 Dec - 04 Jan Wizz Air
30 Dec - 02 Jan Wizz Air
25 Dec - 04 Jan Air France

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

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