AirHint found the following cheapest return flights from Karlsruhe/Baden-Baden (FKB) to London (STN) in December 2026 (see full year).
Return flights
| 04 Dec - 05 Dec | Ryanair | direct | |
| 04 Dec - 06 Dec | Ryanair | direct | |
| 28 Dec - 30 Dec | Ryanair | direct | |
| 26 Dec - 30 Dec | Ryanair | direct | |
| 28 Dec - 02 Jan | Ryanair | direct | |
| 26 Dec - 02 Jan | Ryanair | direct |
Also check the deals for one-way flights from Karlsruhe/Baden-Baden to London in December.
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