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

Return flights

20 Oct - 23 Oct	Ryanair
23 Oct - 27 Oct	Norwegian
20 Oct - 22 Oct	Ryanair
23 Oct - 29 Oct	Norwegian
30 Oct - 05 Nov	easyJet
22 Oct - 29 Oct	easyJet
23 Oct - 26 Oct	Norwegian
27 Oct - 29 Oct	Wizz Air
22 Oct - 26 Oct	Ryanair
19 Oct - 23 Oct	Wizz Air
26 Oct - 30 Oct	Wizz Air
26 Oct - 02 Nov	Wizz Air
31 Oct - 02 Nov	Wizz Air

Also check the deals for one-way flights from Basel to Oslo in October.

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 October from $153

Return flights