Cheapest return flights from Porto to Istanbul in July from $301

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 July 2025 (see full year).

Return flights

01 Jul - 08 Jul easyJet
10 Jul - 17 Jul Ryanair
07 Jul - 17 Jul easyJet
10 Jul - 14 Jul Ryanair
10 Jul - 15 Jul Ryanair
01 Jul - 04 Jul Ryanair
28 Jul - 31 Jul easyJet
15 Jul - 24 Aug easyJet
01 Jul - 06 Jul Ryanair
21 Jul - 31 Jul Ryanair
09 Jul - 16 Jul Lufthansa
25 Jul - 05 Aug Ryanair
27 Jul - 02 Aug Lufthansa
17 Jul - 05 Aug Vueling Airlines
17 Jul - 02 Aug Vueling Airlines
17 Jul - 01 Aug Vueling Airlines
18 Jul - 02 Aug Lufthansa
27 Jul - 02 Aug Turkish Airlines direct
25 Jul - 05 Aug Turkish Airlines direct
18 Jul - 02 Aug Turkish Airlines direct

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

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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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