Cheapest return flights from Oslo to Porto in August from $245

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

Return flights

10 Aug - 17 Aug Norwegian direct
05 Aug - 17 Aug Norwegian direct
21 Aug - 04 Sep Norwegian direct
07 Aug - 17 Aug Norwegian direct
21 Aug - 02 Sep Norwegian direct
10 Aug - 24 Aug Norwegian direct
05 Aug - 24 Aug Norwegian direct
28 Aug - 04 Sep Norwegian direct
21 Aug - 07 Sep Norwegian direct
28 Aug - 02 Sep Norwegian direct
07 Aug - 24 Aug Norwegian direct
21 Aug - 01 Sep Norwegian
21 Aug - 24 Aug Norwegian direct
28 Aug - 07 Sep Norwegian direct
05 Aug - 10 Aug Norwegian direct
28 Aug - 01 Sep Norwegian
05 Aug - 09 Aug Norwegian
07 Aug - 10 Aug Norwegian direct
21 Aug - 06 Sep Norwegian
28 Aug - 06 Sep Norwegian

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

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