Cheapest return flights from Istanbul to Porto in May from $192

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

Return flights

05 May - 08 May Pegasus Airlines
04 May - 08 May Pegasus Airlines
20 May - 27 May Pegasus Airlines
04 May - 12 May AJet
25 May - 28 May Pegasus Airlines
27 May - 29 May Pegasus Airlines
08 May - 10 May Scandinavian Airlines
22 May - 24 May Pegasus Airlines
21 May - 24 May AJet
08 May - 09 May AJet
23 May - 02 Jun Pegasus Airlines
23 May - 01 Jun Pegasus Airlines
12 May - 01 Jun Vueling Airlines
27 May - 17 Jun Vueling Airlines
30 May - 17 Jun Vueling Airlines
13 May - 01 Jun Vueling Airlines
27 May - 01 Jun Vueling Airlines
27 May - 08 Jun Vueling Airlines
19 May - 01 Jun Vueling Airlines
19 May - 08 Jun Vueling Airlines

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

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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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