Air Berlin is a major German airline, the second largest in Germany after Lufthansa. It serves 52 destinations in Germany, throughout Europe, the Caribbean, and the Americas. Top destinations include Munich, Boston, Mykonos, Paris, Beijing, and Cairo. Dependent on if you book economy class or b business class, there are options for upgraded seating, wifi, a USB port, and TVs with diverse inflight entertainment. Snacks and drinks are available for purchase.
Air Berlin's frequent flyer program is called topbonus, and you get 500 miles as a welcome gift. Economy class passengers can check one bag and business class passengers can check two. One carry on item is permitted.