Cheapest return flights from Porto to Oslo in September from $216

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

Return flights

30 Sep - 07 Oct TAP
04 Sep - 16 Sep Norwegian
02 Sep - 16 Sep Norwegian
29 Sep - 06 Oct Ryanair
11 Sep - 16 Sep Vueling Airlines
04 Sep - 14 Sep Norwegian
02 Sep - 14 Sep Norwegian
25 Sep - 07 Oct Vueling Airlines
21 Sep - 07 Oct Norwegian
04 Sep - 14 Sep Norwegian direct
02 Sep - 14 Sep Norwegian direct
25 Sep - 05 Oct Vueling Airlines
04 Sep - 16 Sep Norwegian direct
25 Sep - 16 Oct Vueling Airlines
04 Sep - 25 Sep Norwegian
02 Sep - 16 Sep Norwegian direct
30 Sep - 07 Oct Norwegian direct
30 Sep - 05 Oct Norwegian direct
21 Sep - 07 Oct Norwegian direct
25 Sep - 07 Oct Norwegian direct

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

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