I don't know much about Germany but do know that the population of Frankfurt is not very large. I never understood why the vast majority of flights go there. Is it because LH wanted a central point where you could make connections and FRA was chosen as that point. Is it because there are other cities nearby making the metro area very big. Is Frankfurt just a much more important city then I thought. I would have definitely though Munich and Berlin would be ahead, but what do I know. Isn't hamburg bigger too?

Why does Berlin not have many more flights. I am not even sure if they have any to the US. Its the capital and a city of 4 million, right? Is it not that important to business because of its East German heritage.