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

Return flights

02 Feb - 10 Feb	Ryanair
26 Feb - 04 Mar	Ryanair
21 Feb - 27 Feb	Ryanair
26 Feb - 03 Mar	Ryanair
25 Feb - 03 Mar	Ryanair
28 Feb - 08 Mar	Ryanair
03 Feb - 07 Feb	TAP
05 Feb - 08 Feb	Wizz Air
10 Feb - 14 Feb	TAP
15 Feb - 25 Feb	KLM
22 Feb - 26 Feb	Norwegian Air Sweden AOC
28 Feb - 03 Mar	KLM
22 Feb - 25 Feb	Vueling Airlines
11 Feb - 15 Feb	Wizz Air
15 Feb - 22 Feb	Ryanair
26 Feb - 18 Mar	Vueling Airlines
22 Feb - 04 Mar	Vueling Airlines
22 Feb - 01 Mar	Vueling Airlines
08 Feb - 01 Mar	Vueling Airlines
26 Feb - 01 Mar	Vueling Airlines

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

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 Oslo to Porto in February from $147

Return flights