Cheapest one-way flights from Oslo to Porto in September from 134€

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

One-Way flights

18 Sep Ryanair
18 Sep Norwegian direct
14 Sep Norwegian direct

Also check the deals for return flights from Oslo to Porto in September.

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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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