AirHint found the following cheapest one-way flights from Porto (OPO) to Oslo (OSL) in October 2025 (see full year).

One-Way flights

22 Oct	Norwegian	direct
10 Oct	easyJet
16 Oct	easyJet
17 Oct	Norwegian	direct
13 Oct	Transavia France
23 Oct	Ryanair
03 Oct	easyJet
15 Oct	Norwegian	direct
01 Oct	Norwegian	direct
29 Oct	Vueling Airlines

Also check the deals for return flights from Porto 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 one-way flights from Porto to Oslo in October from 57€

One-Way flights