Berlin Tegel Airport has one main terminal building, which is split into five separate boarding areas that are officially named terminals. Each terminal is lettered A–E.
Terminal A (directly connected to Terminal B) has the airport's iconic hexagon-shaped structure. The terminal facilitates flights from most major airlines that fly to Berlin Tegel, including transcontinental flights from carriers such as United and Lufthansa.
Terminal B is directly connected to Terminal A. The terminal handles flights from a mix of airlines, including long-haul flights from Qatar Airways.
Terminal C opened in May 2007 and was created as a temporary terminal due to a high number of passengers using Berlin Tegel Airport. Terminal C was primarily used by Air Berlin while it was active. Today, Terminal C is a transit zone for passengers that have flown on connecting flights.
Terminal D opened in 2001. The terminal is mainly used for small aircraft that fly shorter routes.
Terminal E is situated on the lower level of Terminal D and has just two gates.