Cheapest return flights from Oslo to Porto in July from $258

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

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

Return flights

30 Jul - 18 Aug Norwegian direct
28 Jul - 18 Aug Norwegian Air Sweden AOC
30 Jul - 20 Aug Norwegian
18 Jul - 25 Jul Ryanair
16 Jul - 18 Jul Ryanair
09 Jul - 11 Jul Vueling Airlines
09 Jul - 16 Jul Vueling Airlines
18 Jul - 28 Jul Ryanair
30 Jul - 06 Aug Norwegian direct
30 Jul - 15 Aug Norwegian direct
25 Jul - 06 Aug Norwegian direct
28 Jul - 06 Aug Norwegian Air Sweden AOC
28 Jul - 15 Aug Norwegian Air Sweden AOC
30 Jul - 08 Aug Norwegian direct
30 Jul - 19 Aug Norwegian
09 Jul - 18 Jul Vueling Airlines
04 Jul - 11 Jul Norwegian direct
09 Jul - 11 Jul Norwegian direct
09 Jul - 17 Jul Vueling Airlines
04 Jul - 16 Jul Norwegian direct

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

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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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