Cheapest return flights from Istanbul to Porto in September from $233

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

Return flights

16 Sep - 23 Sep Pegasus Airlines
28 Sep - 04 Oct Wizz Air UK
22 Sep - 26 Sep Transavia France
08 Sep - 17 Sep AJet
02 Sep - 08 Sep Turkish Airlines
20 Sep - 27 Sep Transavia France
15 Sep - 25 Sep Pegasus Airlines
08 Sep - 14 Sep AJet
08 Sep - 16 Sep Pegasus Airlines
19 Sep - 21 Sep Wizz Air UK
13 Sep - 20 Sep Wizz Air UK
22 Sep - 08 Oct Vueling Airlines
29 Sep - 15 Oct Vueling Airlines
22 Sep - 03 Oct Vueling Airlines
29 Sep - 08 Oct Vueling Airlines
17 Sep - 08 Oct Vueling Airlines
30 Sep - 15 Oct Vueling Airlines
30 Sep - 08 Oct Vueling Airlines
29 Sep - 03 Oct Vueling Airlines
17 Sep - 03 Oct Vueling Airlines

Also check the deals for one-way 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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