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

Return flights

13 Apr - 22 Apr	Norwegian
13 Apr - 02 May	Norwegian
13 Apr - 01 May	Norwegian	direct
24 Apr - 02 May	Norwegian
13 Apr - 18 Apr	Norwegian
24 Apr - 01 May	Norwegian	direct
24 Apr - 09 May	Norwegian
10 Apr - 17 Apr	TAP
17 Apr - 20 Apr	TAP
24 Apr - 28 Apr	Norwegian
17 Apr - 22 Apr	Vueling Airlines
24 Apr - 03 May	Norwegian
10 Apr - 22 Apr	Norwegian
13 Apr - 29 Apr	Norwegian
17 Apr - 02 May	Vueling Airlines
08 Apr - 22 Apr	Norwegian
01 Apr - 05 Apr	KLM
17 Apr - 01 May	Vueling Airlines
10 Apr - 01 May	Norwegian	direct
17 Apr - 01 May	Norwegian	direct

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

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 April from $145

Return flights