Mannheim Airport's house brand, Rhein-Neckar Air, will offer non-stop flights between Kassel-Calden and Sylt in summer 2021. All flights of this provider are operated operationally by the Bavarian MHS Aviation.

Rhein-Neckar Air was launched a few years ago by Mannheim Airport, local entrepreneurs and MHS Aviation in order to be able to provide regular scheduled flights to the small airport. Turboprop aircraft of the type Dornier 328 are used. The route network from Mannheim consists of the destinations Berlin, Hamburg and Sylt. The latter destination is also offered seasonally from other airports, such as Kassel-Calden.

The corona pandemic did not stop at Mannheim Airport either. That is why the offer is heavily reduced or temporarily suspended. From Kassel-Calden, the Sylt route will be available again from May 12, 2021. They want to fly once a week by the end of October 2021. The implementation takes place from the home base according to the model Mannheim-Sylt-Kassel Calden-Sylt-Mannheim.