Cheapest return flights from Porto to Oslo in September from 155€

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

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

Return flights

26 Sep - 29 Sep easyJet
26 Sep - 30 Sep TAP
03 Sep - 15 Sep Norwegian
17 Sep - 06 Oct Norwegian direct
26 Sep - 08 Oct Norwegian
03 Sep - 12 Sep Norwegian
08 Sep - 15 Sep Ryanair
22 Sep - 26 Sep easyJet
02 Sep - 11 Sep SWISS
22 Sep - 08 Oct Norwegian
05 Sep - 15 Sep Norwegian
26 Sep - 06 Oct Norwegian direct
08 Sep - 12 Sep Ryanair
17 Sep - 08 Oct Norwegian direct
17 Sep - 04 Oct Norwegian
17 Sep - 29 Sep Norwegian direct
22 Sep - 06 Oct Norwegian direct
15 Sep - 04 Oct Vueling Airlines
26 Sep - 04 Oct Norwegian
19 Sep - 08 Oct Norwegian

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