Cheapest return flights from Porto to Istanbul in August from $335

AirHint found the following cheapest return flights from Porto (OPO) to Istanbul (IST) in August 2026 (see full year).

Return flights

25 Aug - 04 Sep easyJet
25 Aug - 01 Sep easyJet
18 Aug - 25 Aug easyJet
19 Aug - 26 Aug Eurowings
05 Aug - 13 Aug Ryanair
09 Aug - 16 Aug Vueling Airlines
25 Aug - 07 Sep Vueling Airlines
28 Aug - 03 Sep easyJet
16 Aug - 22 Aug Air Serbia
22 Aug - 29 Aug Iberia
25 Aug - 02 Sep Vueling Airlines
25 Aug - 03 Sep Vueling Airlines
18 Aug - 07 Sep Vueling Airlines
25 Aug - 14 Sep Vueling Airlines
28 Aug - 07 Sep Vueling Airlines
10 Aug - 25 Aug Vueling Airlines
18 Aug - 02 Sep Vueling Airlines
25 Aug - 26 Aug Vueling Airlines
01 Aug - 08 Aug Ryanair
18 Aug - 26 Aug Vueling Airlines

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

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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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