Cheapest one-way flights from Istanbul to Porto in September from $119

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

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

One-Way flights

24 Sep Pegasus Airlines
17 Sep Pegasus Airlines
21 Sep Pegasus Airlines
06 Sep Pegasus Airlines
20 Sep Pegasus Airlines
13 Sep Pegasus Airlines
04 Sep Wizz Air
09 Sep Pegasus Airlines
08 Sep Pegasus Airlines
03 Sep Wizz Air

Also check the deals for return flights from Istanbul to Porto 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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