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

Return flights

26 Dec - 31 Dec	Wizz Air
23 Dec - 09 Jan	Wizz Air
31 Dec - 01 Jan	Wizz Air
26 Dec - 28 Dec	Wizz Air
25 Dec - 31 Dec	Wizz Air
31 Dec - 04 Jan	Wizz Air
29 Dec - 06 Jan	easyJet
24 Dec - 26 Dec	Wizz Air
26 Dec - 29 Dec	Wizz Air
29 Dec - 04 Jan	Wizz Air
29 Dec - 01 Jan	Wizz Air
28 Dec - 04 Jan	Wizz Air
22 Dec - 01 Jan	Wizz Air
26 Dec - 03 Jan	Wizz Air
29 Dec - 02 Jan	easyJet
21 Dec - 26 Dec	KLM

Also check the deals for one-way flights from Basel to Oslo 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 Basel to Oslo in December from 159€

Return flights