Berlin Tegel Airport Caledonian, Capitol International Airways, Overseas National Airways, Saturn Airways, Trans International Airlines, Transamerica Airlines and World Airways. During that period, the airport scene at Berlin Tegel could be very colourful, with Air France Caravelles, the UK independents' BAC One-Elevens, de Havilland Comets and Hawker Siddeley Tridents as well as the US supplementals' Boeing 707s, Convair Coronados and Douglas DC-8s congregating on its ramp. During 1974 alone, 22 airlines were operating at Tegel Airport. Construction of a new, hexagonally shaped terminal complex on the airport's south side began during the 1960s. This coincided with the lengthening of the runways to permit
Berlin Tegel Airport a Boeing 747-400 but features no jet bridges. Terminal D was opened in 2001 and is a converted car park. It features 22 check-in counters (D70–D91), with one bus-boarding gate and two walk-boarding gates. Most passengers of airlines operating smaller aircraft (like Embraer 190s for example) are brought to the remote aircraft stands by bus from here. Terminal D is the only part of the airport that remains open all night long. The lower level arrival area is called Terminal E (Gates E16-E18). Tegel Airport was originally planned to have a second hexagonal terminal like the main building right next