Cheapest return flights from Oslo to Porto in September from 165€

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

Return flights

09 Sep - 14 Sep TAP
08 Sep - 13 Sep TAP
21 Sep - 29 Sep Ryanair
16 Sep - 18 Sep Vueling Airlines
28 Sep - 16 Oct Norwegian Air Sweden AOC
18 Sep - 20 Sep Transavia France
28 Sep - 09 Oct Norwegian Air Sweden AOC
09 Sep - 18 Sep Vueling Airlines
16 Sep - 28 Sep Vueling Airlines
11 Sep - 18 Sep Norwegian direct
09 Sep - 18 Sep Norwegian direct
28 Sep - 16 Oct Norwegian direct
16 Sep - 18 Sep Norwegian direct
16 Sep - 02 Oct Vueling Airlines
16 Sep - 05 Oct Vueling Airlines
28 Sep - 02 Oct Norwegian Air Sweden AOC
28 Sep - 09 Oct Norwegian direct
28 Sep - 02 Oct Norwegian direct
28 Sep - 05 Oct Norwegian direct
16 Sep - 02 Oct Norwegian direct

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

Powered by

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.

Book a cheap hotel in Porto

Cheap car rent in Porto

Feel free to contact us with any feedback or request another flight research.