Cheapest one-way flights from Istanbul to Porto in August from $139

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

One-Way flights

26 Aug Air Serbia
02 Aug Air Serbia
25 Aug SKY express
31 Aug Scandinavian Airlines
03 Aug Vueling Airlines
07 Aug Vueling Airlines
24 Aug Vueling Airlines
22 Aug Vueling Airlines
09 Aug Vueling Airlines
16 Aug Vueling Airlines

Also check the deals for return 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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