Cheapest return flights from Oslo to Porto in June from $138

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 June 2025 (see full year).

Return flights

04 Jun - 11 Jun Ryanair
09 Jun - 13 Jun Vueling Airlines
09 Jun - 11 Jun Vueling Airlines
09 Jun - 13 Jun Norwegian direct
09 Jun - 11 Jun Norwegian direct
04 Jun - 11 Jun Norwegian direct
02 Jun - 13 Jun Norwegian Air Sweden AOC
09 Jun - 18 Jun Norwegian direct
09 Jun - 16 Jun Vueling Airlines
09 Jun - 25 Jun Vueling Airlines
11 Jun - 02 Jul Vueling Airlines
14 Jun - 02 Jul Vueling Airlines
11 Jun - 01 Jul Vueling Airlines
14 Jun - 04 Jul Vueling Airlines
16 Jun - 02 Jul Vueling Airlines
14 Jun - 01 Jul Vueling Airlines
18 Jun - 02 Jul Vueling Airlines
16 Jun - 04 Jul Vueling Airlines
18 Jun - 09 Jul Ryanair
16 Jun - 01 Jul Vueling Airlines

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

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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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