Cheapest return flights from Porto to Istanbul in September from $247

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

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

Return flights

17 Sep - 25 Sep easyJet
25 Sep - 28 Sep easyJet
17 Sep - 21 Sep easyJet
19 Sep - 24 Sep easyJet
23 Sep - 29 Sep easyJet
13 Sep - 19 Sep easyJet
28 Sep - 06 Oct easyJet
10 Sep - 14 Sep easyJet
19 Sep - 28 Sep easyJet
27 Sep - 04 Oct easyJet
05 Sep - 13 Sep easyJet
04 Sep - 10 Sep easyJet

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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