Cheapest return flights from Oslo to Porto in August from $181

Best time to book flights for Oslo (OSL) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from Oslo (OSL) to Porto (OPO) in August 2025 (see full year).

Return flights

15 Aug - 27 Aug Norwegian direct
08 Aug - 27 Aug Norwegian direct
15 Aug - 29 Aug Norwegian direct
06 Aug - 20 Aug Norwegian direct
06 Aug - 22 Aug Norwegian direct
20 Aug - 27 Aug Norwegian direct
11 Aug - 27 Aug Norwegian direct
01 Aug - 20 Aug Norwegian direct
15 Aug - 20 Aug Norwegian direct
15 Aug - 22 Aug Norwegian direct
15 Aug - 08 Sep Norwegian
29 Aug - 19 Sep Ryanair
20 Aug - 05 Sep Norwegian direct
29 Aug - 17 Sep Ryanair
16 Aug - 07 Sep Norwegian Air Sweden AOC
22 Aug - 05 Sep Norwegian direct
15 Aug - 08 Sep Norwegian direct
15 Aug - 01 Sep Norwegian direct
18 Aug - 05 Sep Norwegian direct
15 Aug - 04 Sep Norwegian

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

Skyscanner

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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