Cheapest return flights from Istanbul to Porto in October from $223

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

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

Return flights

14 Oct - 21 Oct Pegasus Airlines
21 Oct - 07 Nov Pegasus Airlines
03 Oct - 06 Oct Transavia France
24 Oct - 28 Oct Pegasus Airlines
24 Oct - 29 Oct Pegasus Airlines
27 Oct - 05 Nov Vueling Airlines
28 Oct - 05 Nov Vueling Airlines
22 Oct - 05 Nov Vueling Airlines
27 Oct - 10 Nov Vueling Airlines
16 Oct - 05 Nov Vueling Airlines
28 Oct - 10 Nov Vueling Airlines
22 Oct - 10 Nov Vueling Airlines
27 Oct - 11 Nov Vueling Airlines
27 Oct - 17 Nov Vueling Airlines
08 Oct - 27 Oct Vueling Airlines
08 Oct - 29 Oct Vueling Airlines
08 Oct - 22 Oct Vueling Airlines
24 Oct - 30 Oct Pegasus Airlines
14 Oct - 27 Oct Vueling Airlines
09 Oct - 27 Oct Vueling Airlines

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

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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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