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

Return flights

11 Dec - 15 Dec	easyJet
12 Dec - 18 Jan	Wizz Air
09 Dec - 11 Dec	Wizz Air
31 Dec - 06 Jan	Wizz Air
10 Dec - 14 Dec	Wizz Air
26 Dec - 05 Jan	Wizz Air
08 Dec - 11 Dec	Wizz Air
09 Dec - 12 Dec	Wizz Air
27 Dec - 31 Dec	Wizz Air
13 Dec - 14 Dec	Wizz Air
22 Dec - 04 Jan	Wizz Air
15 Dec - 18 Dec	Wizz Air
23 Dec - 10 Jan	easyJet
11 Dec - 18 Dec	easyJet
31 Dec - 04 Jan	Wizz Air
19 Dec - 24 Dec	Wizz Air
26 Dec - 01 Jan	Wizz Air
24 Dec - 01 Jan	Wizz Air
31 Dec - 02 Jan	Wizz Air
27 Dec - 01 Jan	Wizz Air

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 $137

Return flights