AirHint found the following cheapest one-way flights from Porto (OPO) to Karlsruhe/Baden-Baden (FKB) in December 2025 (see full year).
One-Way flights
| 15 Dec | Ryanair | direct | |
| 12 Dec | Ryanair | direct | |
| 18 Dec | Ryanair | direct | |
| 04 Dec | Ryanair | direct | |
| 05 Dec | Ryanair | direct | |
| 26 Dec | Ryanair | direct | |
| 22 Dec | Ryanair | direct |
Also check the deals for return flights from Porto to Karlsruhe/Baden-Baden in December.
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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