Freight and logistics firm Zeitfracht Group is to market its regional carriers WDL Aviation and LGW under the brand German Airways.
The German corporate registry has been updated with a German Airways entry, dated September, from the parent company.
Zeitfracht states on one of its social media outlets that it is celebrating a "day of German unity".
It says WDL and LGW will operate under the German Airways brand, although will maintain separate air operator's certificates.
The company has unveiled a logo representative of a bird, with its wings and body bearing the three colours of the German flag.
LGW is a regional carrier operating 17 Bombardier Q400s on behalf of Eurowings, while WDL uses an all-jet fleet comprising three Embraer 190s and three British Aerospace 146s.
But LGW is intending to transition to a jet fleet by replacing its Q400s with Embraer 190s from the end of this year.