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

Return flights

10 Dec - 14 Dec	Wizz Air
03 Dec - 05 Dec	Wizz Air
25 Dec - 31 Dec	easyJet
01 Dec - 03 Dec	easyJet
31 Dec - 07 Jan	Wizz Air
17 Dec - 26 Dec	Wizz Air
18 Dec - 26 Dec	easyJet
26 Dec - 03 Jan	easyJet
16 Dec - 24 Dec	Wizz Air
01 Dec - 07 Dec	Wizz Air
24 Dec - 31 Dec	Wizz Air
19 Dec - 26 Dec	Wizz Air
26 Dec - 01 Jan	Wizz Air
29 Dec - 07 Jan	Wizz Air
27 Dec - 04 Jan	Wizz Air Malta
27 Dec - 06 Jan	easyJet
27 Dec - 03 Jan	Wizz Air Malta
29 Dec - 02 Jan	Wizz Air
27 Dec - 02 Jan	Wizz Air Malta
19 Dec - 21 Jan	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 90€

Return flights