Cheapest return flights from Istanbul to Porto in August from $394

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

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

Return flights

23 Aug - 28 Aug Turkish Airlines
28 Aug - 31 Aug Wizz Air
22 Aug - 31 Aug Pegasus Airlines
03 Aug - 17 Aug Wizz Air
14 Aug - 22 Aug Aegean Airlines
13 Aug - 16 Aug Wizz Air
02 Aug - 09 Aug Pegasus Airlines
17 Aug - 27 Sep Transavia France
09 Aug - 17 Aug Pegasus Airlines
02 Aug - 16 Aug Pegasus Airlines
01 Aug - 01 Aug Air Arabia Maroc
27 Aug - 17 Sep Vueling Airlines
27 Aug - 09 Sep Vueling Airlines
28 Aug - 17 Sep Vueling Airlines
27 Aug - 11 Sep Vueling Airlines
27 Aug - 16 Sep Vueling Airlines
28 Aug - 09 Sep Vueling Airlines
27 Aug - 15 Sep Vueling Airlines
19 Aug - 09 Sep Vueling Airlines
27 Aug - 10 Sep Vueling Airlines

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

Cheap car rent in Porto