BERLIN, Jan 7 (Reuters) - Etihad has asked a German court for more time to continue a code sharing with Air Berlin on 29 routes while it appeals a decision that will block it from operating the flights after Jan 15, it said on Thursday.

A court in Brunswick last week said Etihad may not continue to jointly sell tickets for 29 routes operated by Air Berlin, in which Etihad owns a 29 percent stake, because they were not covered by the current air traffic rights agreement between Germany and the United Arab Emirates.

Etihad on Thursday said the Brunswick court had made errors in its interpretation of the agreement and that it wanted an appeals court to allow it to continue the code shares until at least March 26 while the appeal process was ongoing.

(Reporting by Victoria Bryan; Editing by Harro ten Wolde) ((victoria.bryan@thomsonreuters.com; +49 30 2888 5169; Reuters Messaging: victoria.bryan.thomsonreuters.com@reuters.net Twitter:@vl_bryan))