AirHint found the following cheapest one-way flights from Porto (OPO) to Istanbul (IST) in August 2026 (see full year).
One-Way flights
| 03 Aug | Ryanair | ||
| 31 Aug | Ryanair | ||
| 09 Aug | Air Serbia | ||
| 01 Aug | Ryanair | ||
| 29 Aug | Air Europa | ||
| 13 Aug | Iberia | ||
| 04 Aug | Vueling Airlines | ||
| 05 Aug | Transavia France | ||
| 12 Aug | Transavia France | ||
| 27 Aug | Vueling Airlines |
Also check the deals for return flights from Porto to Istanbul in August.
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