AirHint found the following cheapest one-way flights from Karlsruhe/Baden-Baden (FKB) to Porto (OPO) in December 2025 (see full year).
One-Way flights
| 04 Dec | Ryanair | direct | |
| 07 Dec | Ryanair | direct | |
| 12 Dec | Ryanair | direct | |
| 14 Dec | Ryanair | direct | |
| 02 Dec | Ryanair | ||
| 09 Dec | Ryanair | ||
| 01 Dec | Ryanair | ||
| 03 Dec | Ryanair | ||
| 17 Dec | Ryanair | ||
| 08 Dec | Ryanair |
Also check the deals for return flights from Karlsruhe/Baden-Baden to Porto 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.
Find us on social media