Cheapest return flights from Porto to Oslo in May from 167€

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

Return flights

01 May - 18 May Norwegian direct
01 May - 16 May Norwegian
22 May - 25 May TAP
01 May - 06 May Norwegian
01 May - 20 May Norwegian
15 May - 17 May Iberia
01 May - 04 May Norwegian
01 May - 06 May Norwegian direct
06 May - 10 May Norwegian
12 May - 16 May Ryanair
29 May - 08 Jun Norwegian
27 May - 08 Jun Norwegian
22 May - 08 Jun Norwegian
29 May - 08 Jun Norwegian direct
27 May - 08 Jun Norwegian direct
22 May - 08 Jun Norwegian direct
29 May - 19 Jun Norwegian direct
31 May - 08 Jun Norwegian Air Sweden AOC
31 May - 19 Jun Norwegian Air Sweden AOC

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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