Cheapest return OPO–OSL flights, May

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

Return flights

13 May - 15 May Ryanair
13 May - 17 May Ryanair
21 May - 25 May Ryanair
07 May - 10 May Ryanair
12 May - 15 May Ryanair
08 May - 10 May Norwegian
08 May - 11 May Ryanair
18 May - 20 May Ryanair
22 May - 25 May Norwegian direct
08 May - 12 May Norwegian
13 May - 29 Jun Ryanair
29 May - 13 Jun Wizz Air
20 May - 01 Jun Norwegian direct
29 May - 12 Jun Wizz Air
29 May - 01 Jun Norwegian direct
22 May - 01 Jun Norwegian direct
20 May - 08 Jun Norwegian
30 May - 13 Jun Ryanair
31 May - 05 Jun Ryanair
22 May - 08 Jun Norwegian

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

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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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