Upvote:2
If you could yourself limit to an airport and all airports within a 2000 miles radius, then Google's Matrix Airfare Search could be an option for you. Generally, all matrix flight search engines could be interesting. I did your specific search query for you and checked all the flights from Berlin, including all other airports within 2000 miles radius, to Bergen for January 2013:
If you select one of these dates, you can see the specific flights. For example for the cheap flight at January, 13., you get a list like this: