Cheapest return flights from Oslo to Porto in May from 107€

Best time to book flights for Oslo (OSL) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from Oslo (OSL) to Porto (OPO) in May 2025 (see full year).

Return flights

12 May - 21 May Norwegian direct
12 May - 28 May Norwegian direct
12 May - 23 May Norwegian direct
12 May - 19 May Norwegian direct
07 May - 21 May Norwegian direct
19 May - 21 May Norwegian direct
19 May - 23 May easyJet
12 May - 30 May Norwegian direct
12 May - 16 May Norwegian direct
14 May - 21 May Norwegian direct
30 May - 04 Jun Volotea
21 May - 11 Jun Vueling Airlines
19 May - 06 Jun Vueling Airlines
19 May - 06 Jun Norwegian direct
21 May - 06 Jun Vueling Airlines
19 May - 04 Jun Vueling Airlines
16 May - 04 Jun Norwegian
14 May - 04 Jun Norwegian
21 May - 06 Jun Norwegian direct
21 May - 04 Jun Vueling Airlines

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