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

Return flights

12 Feb - 17 Feb	Ryanair
13 Feb - 17 Feb	Ryanair
14 Feb - 17 Feb	Air Europa
04 Feb - 15 Feb	Vueling Airlines
04 Feb - 06 Feb	Vueling Airlines
03 Feb - 04 Feb	Vueling Airlines
03 Feb - 15 Feb	Vueling Airlines
07 Feb - 15 Feb	Vueling Airlines
03 Feb - 06 Feb	Vueling Airlines
05 Feb - 15 Feb	Vueling Airlines

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

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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Cheapest return flights from Porto to Istanbul in February from $208

Return flights