Cheapest one-way flights from Oslo to Porto in August from $72

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

One-Way flights

10 Aug Norwegian direct
15 Aug Norwegian
03 Aug Norwegian Air Sweden AOC
02 Aug TAP
03 Aug Norwegian direct
31 Aug Norwegian Air Sweden AOC
31 Aug Norwegian direct

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

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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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