AirHint found the following cheapest return flights from Porto (OPO) to Oslo (OSL) in January 2026 (see full year).

Return flights

15 Jan - 18 Jan	Ryanair
21 Jan - 26 Jan	Ryanair
23 Jan - 31 Jan	Ryanair
14 Jan - 21 Jan	Ryanair
27 Jan - 02 Feb	Ryanair
08 Jan - 11 Jan	Ryanair
15 Jan - 19 Jan	Ryanair
27 Jan - 01 Feb	Ryanair
09 Jan - 11 Jan	Ryanair
21 Jan - 24 Jan	Ryanair
08 Jan - 12 Jan	Ryanair
18 Jan - 21 Jan	Ryanair
30 Jan - 01 Feb	Ryanair
14 Jan - 11 Feb	Ryanair
25 Jan - 01 Feb	Ryanair
31 Jan - 04 Feb	Ryanair
23 Jan - 14 Feb	Ryanair
29 Jan - 01 Feb	Ryanair
31 Jan - 03 Feb	KLM

Also check the deals for one-way flights from Porto to Oslo in January.

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 Porto to Oslo in January from 104€

Return flights