The cheapest flight to London you can get by boooking 13 days before departure.
The most popular airlines on the route Karlsruhe - London: Ryanair (FR).
The cheapest flights you can book on the route Baden-Baden (FKB) - Stansted (STN).
Direct flights last about 1h 30min.
Direct flights available 7 days a week.
Direct flights: Ryanair (FR).