Cheapest return flights from Porto to Istanbul in August from 261€

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 August 2025 (see full year).

Return flights

20 Aug - 26 Aug Wizz Air Malta
06 Aug - 13 Aug Vueling Airlines
22 Aug - 26 Aug Wizz Air Malta
15 Aug - 21 Aug Ryanair
18 Aug - 24 Aug Wizz Air Malta
06 Aug - 26 Aug Vueling Airlines
06 Aug - 21 Aug Vueling Airlines
06 Aug - 25 Aug Vueling Airlines
18 Aug - 25 Aug Turkish Airlines direct
11 Aug - 20 Aug transavia
31 Aug - 13 Sep Vueling Airlines
24 Aug - 13 Sep Vueling Airlines

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

Skyscanner

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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul