Berlin Tegel Airport to it. The second terminal ring was never built because of Berlin municipal budgetary constraints and the post-reunification decision to replace the former West Berlin airports with the new Berlin Brandenburg Airport. The following airlines operate regular scheduled and charter flights at Berlin Tegel Airport: In 2016, Tegel handled over 60% of all airline passenger traffic in Berlin. Tegel Airport doesn't have a direct rail connection but is connected by several bus routes and motorways. An underground station directly serving the airport had been planned since the 1960s but it was never built due to the expected closure of Tegel
Airport city Airport city Airport city is the "inside the fence" airport area including the airport (terminals, apron, and runways) and on-airport businesses such as air cargo, logistics, offices, retail, and hotels. The airport city is at the core of the aerotropolis, a new urban form evolving around many major airports. The airport city model recognises that an airport can do more than perform its traditional aeronautical services, evolving new non-aeronautical commercial facilities, services and revenue streams. Airports are now routinely targeting non-aeronautical revenue streams amounting to 40–60% of their total revenues. Industry leaders and researchers share best practices on non-aeronautical revenues