Cheapest return flights from Porto to Oslo in September from 252€

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

Return flights

04 Sep - 09 Sep Norwegian
16 Sep - 05 Oct Vueling Airlines
04 Sep - 12 Sep Norwegian
11 Sep - 12 Sep Norwegian
11 Sep - 18 Sep Vueling Airlines
16 Sep - 05 Oct Norwegian direct
11 Sep - 19 Sep Vueling Airlines
04 Sep - 09 Sep Norwegian direct
04 Sep - 11 Sep Norwegian direct
04 Sep - 18 Sep Norwegian
16 Sep - 18 Sep Vueling Airlines
06 Sep - 09 Sep Norwegian Air Sweden AOC
14 Sep - 05 Oct Norwegian direct

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

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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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