Contrary to original plans, the Lufthansa subsidiary Eurowings will not offer non-stop flights to Oslo from Düsseldorf and Prague in the 2023/24 winter flight schedule. These routes can only be booked if you change via other airports.
In Cologne/Bonn the carrier is also putting the red pencil on. This is the case with the non-stop connection to Larnaca in Cyprus, which is also not offered in the 2023/24 winter flight schedule. It is currently planned to resume in summer 2024.