To book the cheapest fare available you have to look for limited travel options within November 2014 till March 2015. To check your connerction possibilities we recommend to use Skyscanner tool.
Booking samples
Brussels - Shanghai - Germany (Frankfurt) for €396
Copenhagen - Shanghai - Germnay (Berlin) for €398
Booking sample of cheap open-jaw flights to Shanghai from Europe for €396 here. In this case you would be departing from Brussels to China on 13th of November. Your return flight from Shanghai back to Dusseldorf would be on 26th of November 2014.
