Cheapest return flights from Porto to Oslo in May from $142

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

Return flights

06 May - 11 May Ryanair
07 May - 11 May Ryanair
08 May - 11 May Norwegian
06 May - 10 May Ryanair
13 May - 17 May Ryanair
08 May - 11 May Norwegian direct
08 May - 15 May Norwegian direct
08 May - 18 May Norwegian direct
16 May - 17 May easyJet
21 May - 25 May Ryanair
22 May - 10 Jun Norwegian
27 May - 10 Jun Norwegian
20 May - 05 Jun Norwegian direct
22 May - 12 Jun Norwegian direct
22 May - 05 Jun Norwegian direct
20 May - 10 Jun Norwegian direct
22 May - 10 Jun Norwegian direct
27 May - 12 Jun Norwegian direct
27 May - 05 Jun Norwegian direct
27 May - 10 Jun Norwegian direct

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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