Cheapest return flights from Porto to Oslo in September from 171€

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

Return flights

09 Sep - 16 Sep Iberia
10 Sep - 16 Sep TAP
11 Sep - 16 Sep TAP
04 Sep - 16 Sep Norwegian
09 Sep - 28 Sep Norwegian
11 Sep - 28 Sep Vueling Airlines
01 Sep - 16 Sep Norwegian Air Sweden AOC
04 Sep - 16 Sep Norwegian direct
09 Sep - 28 Sep Norwegian direct
09 Sep - 16 Sep Norwegian direct

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

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