Cheapest return flights from Oslo to Porto in September from $195

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

Return flights

14 Sep - 18 Sep TAP
03 Sep - 06 Sep TAP
16 Sep - 18 Sep Vueling Airlines
16 Sep - 07 Oct Vueling Airlines
18 Sep - 21 Sep Transavia France
28 Sep - 16 Oct Norwegian Air Sweden AOC
16 Sep - 20 Sep TAP
28 Sep - 07 Oct Norwegian Air Sweden AOC
09 Sep - 18 Sep Vueling Airlines
04 Sep - 18 Sep Norwegian direct
04 Sep - 07 Sep TAP
28 Sep - 19 Oct Norwegian Air Sweden AOC
09 Sep - 18 Sep Norwegian direct
14 Sep - 18 Sep Norwegian direct
28 Sep - 16 Oct Norwegian direct
16 Sep - 06 Oct Vueling Airlines
28 Sep - 07 Oct Norwegian direct
16 Sep - 02 Oct Vueling Airlines
16 Sep - 05 Oct Vueling Airlines
28 Sep - 06 Oct Norwegian Air Sweden AOC

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