Cheapest return flights from Oslo to Porto in September from 169€

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

Return flights

22 Sep - 24 Sep Transavia France
20 Sep - 24 Oct Ryanair
29 Sep - 17 Oct Wizz Air
17 Sep - 24 Sep Ryanair
22 Sep - 29 Sep Ryanair
20 Sep - 28 Sep Ryanair
20 Sep - 24 Sep Vueling Airlines
20 Sep - 08 Oct Vueling Airlines
17 Sep - 24 Oct Ryanair
20 Sep - 22 Sep Ryanair
22 Sep - 24 Sep Norwegian direct
22 Sep - 08 Oct Norwegian direct
24 Sep - 30 Sep Ryanair
25 Sep - 02 Oct Wizz Air
26 Sep - 24 Oct Wizz Air
24 Sep - 08 Oct Vueling Airlines
24 Sep - 15 Oct Vueling Airlines
29 Sep - 08 Oct Norwegian Air Sweden AOC
20 Sep - 29 Sep Vueling Airlines
20 Sep - 26 Sep Vueling Airlines

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

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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