Berlin's airport transfer looks complicated. It isn't. One train runs every 15 minutes, costs €5, and gets you to the city centre in 23 minutes. That single sentence solves the problem for most visitors. But if you're staying in Neukölln, arriving at 2 AM, or traveling with three suitcases and a toddler, you'll want to read on. BER — officially Berlin Brandenburg Airport Willy Brandt — is the city's only airport. It replaced the beloved Tegel and the patched-together Schönefe