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
Okmulgee Regional Airport to bring new clients and businesses to the airport while relieving pressure on the 750-acre TAIT-operated Jones Riverside Airport, 20 minutes north, which has already expanded to capacity. The contract has since been extended. In 2016, TAIT drafted an Airport Capital Improvement Plan, also known as a Five-Year Plan, for Okmulgee Regional Airport, which was approved by the Okmulgee City Council on November 15, 2016. The document shows improvements and funding sources for fiscal years 2018 through 2022. Okmulgee Regional Airport Okmulgee Regional Airport is in Okmulgee County, Oklahoma, three miles north of the city of Okmulgee, which owns it.