AirHint found the following cheapest return flights from Karlsruhe/Baden-Baden (FKB) to Porto (OPO) in August 2026 (see full year).
Return flights
| 18 Aug - 08 Sep | Ryanair | direct | |
| 04 Aug - 09 Aug | Ryanair | ||
| 02 Aug - 07 Aug | Ryanair |
Also check the deals for one-way flights from Karlsruhe/Baden-Baden to Porto in August.
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