Cheapest return flights from Porto to Istanbul in September from $218

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

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

Return flights

10 Sep - 14 Sep Volotea
17 Sep - 21 Sep Iberia
17 Sep - 20 Sep Iberia
23 Sep - 30 Sep Ryanair
09 Sep - 18 Sep Ryanair
02 Sep - 09 Sep Wizz Air Malta
09 Sep - 16 Sep Ryanair
19 Sep - 30 Sep Ryanair
06 Sep - 10 Sep Ryanair
01 Sep - 08 Sep Wizz Air Malta
17 Sep - 06 Oct Vueling Airlines

Also check the deals for one-way flights from Porto to Istanbul in September.

Skyscanner

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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