Cheapest return flights from Porto to Istanbul in September from 181€

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

16 Sep - 23 Sep easyJet
16 Sep - 21 Sep easyJet
12 Sep - 18 Sep easyJet
16 Sep - 19 Sep easyJet
22 Sep - 28 Sep Wizz Air Malta
25 Sep - 29 Sep TAP
13 Sep - 20 Sep easyJet
30 Sep - 07 Oct Ryanair
03 Sep - 10 Sep easyJet
04 Sep - 10 Sep easyJet
18 Sep - 04 Oct easyJet
08 Sep - 15 Sep easyJet
30 Sep - 04 Oct Vueling Airlines
30 Sep - 08 Oct Vueling Airlines
25 Sep - 04 Oct Vueling Airlines
25 Sep - 08 Oct Vueling Airlines
25 Sep - 06 Oct Vueling Airlines
25 Sep - 07 Oct Vueling Airlines
30 Sep - 20 Oct Vueling Airlines
30 Sep - 10 Oct Vueling Airlines

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

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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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