Cheapest return flights from Porto to Istanbul in May from 186€

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

Return flights

19 May - 27 May Air Europa
19 May - 23 May Air Europa
19 May - 22 May Air Europa
16 May - 24 May Iberia
21 May - 23 May Air Europa
15 May - 24 May Air Europa
09 May - 12 May Air Europa
16 May - 20 May Air Europa
19 May - 21 May Air Europa
16 May - 19 May Lufthansa
30 May - 13 Jun Vueling Airlines
30 May - 10 Jun Vueling Airlines
30 May - 16 Jun Vueling Airlines
31 May - 13 Jun Vueling Airlines
31 May - 10 Jun Vueling Airlines
31 May - 16 Jun Vueling Airlines
30 May - 14 Jun Vueling Airlines
30 May - 09 Jun Vueling Airlines
30 May - 12 Jun Vueling Airlines
31 May - 14 Jun Vueling Airlines

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