Cheapest return flights from Istanbul to Porto in August from $346

Best time to book flights for Istanbul (IST) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from Istanbul (IST) to Porto (OPO) in August 2025 (see full year).

Return flights

26 Aug - 10 Sep Vueling Airlines
20 Aug - 10 Sep Vueling Airlines
26 Aug - 11 Sep Vueling Airlines
12 Aug - 19 Aug Pegasus Airlines
13 Aug - 20 Aug Wizz Air UK
26 Aug - 13 Sep Vueling Airlines
26 Aug - 05 Sep Vueling Airlines
20 Aug - 05 Sep Vueling Airlines
26 Aug - 06 Sep Vueling Airlines
20 Aug - 06 Sep Vueling Airlines
13 Aug - 20 Aug Turkish Airlines direct
11 Aug - 13 Aug Vueling Airlines
20 Aug - 22 Aug Vueling Airlines
13 Aug - 21 Aug Vueling Airlines
12 Aug - 19 Aug Turkish Airlines direct
13 Aug - 22 Aug Vueling Airlines
11 Aug - 21 Aug Vueling Airlines
11 Aug - 20 Aug Vueling Airlines

Also check the deals for one-way flights from Istanbul 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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