AirHint found the following cheapest one-way flights from Porto (OPO) to Istanbul (IST) in May 2026 (see full year).
One-Way flights
| 16 May | easyJet | ||
| 10 May | easyJet | ||
| 26 May | Ryanair | ||
| 24 May | easyJet | ||
| 31 May | Air Serbia | ||
| 02 May | Vueling Airlines | ||
| 14 May | Vueling Airlines | ||
| 25 May | Vueling Airlines | ||
| 20 May | Vueling Airlines | ||
| 30 May | easyJet |
Also check the deals for return 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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