Cheapest return flights from Istanbul to Porto in August from $315

AirHint found the following cheapest return flights from Istanbul (IST) to Porto (OPO) in August 2026 (see full year).

Return flights

19 Aug - 27 Aug Scandinavian Airlines
29 Aug - 06 Sep Scandinavian Airlines
13 Aug - 19 Aug Scandinavian Airlines
06 Aug - 09 Aug Air Serbia
29 Aug - 05 Sep Scandinavian Airlines
17 Aug - 20 Aug Pegasus Airlines
08 Aug - 15 Aug Pegasus Airlines
05 Aug - 25 Aug Vueling Airlines
19 Aug - 27 Aug Turkish Airlines direct
13 Aug - 19 Aug Turkish Airlines direct
25 Aug - 25 Aug Scandinavian Airlines
05 Aug - 18 Aug Vueling Airlines
19 Aug - 07 Sep Vueling Airlines
27 Aug - 15 Sep Vueling Airlines
20 Aug - 07 Sep Vueling Airlines
25 Aug - 15 Sep Vueling Airlines
27 Aug - 12 Sep Vueling Airlines
27 Aug - 07 Sep Vueling Airlines
24 Aug - 12 Sep Vueling Airlines
19 Aug - 08 Sep 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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