Berlin Tegel Airport continued operating its daily non-stop Tegel–JFK service until Delta Air Lines assumed most of Pan Am's transatlantic scheduled services during 1991. Pan Am Express, which was not included in Pan Am's IGS sale to Lufthansa, continued operating all of its domestic and international regional scheduled routes from Tegel as an independent legal entity until its acquisition by TWA in 1991. Following TWA's takeover of Pan Am Express, the former Pan Am Express Berlin operations were closed. Until December 1994, Lufthansa also contracted Euroberlin to operate some of its internal German flights from its new Tegel base, making use of that
Groningen Airport Eelde Groningen Airport Eelde Groningen Airport Eelde is a minor international airport near Eelde in the province of Drenthe in the northeastern Netherlands. It is south of the city of Groningen. In 2015, the airport handled 220,710 passengers. The airport is also the home base of the KLM Flight Academy, Noord Nederlandse Aero Club (NNAC) and General Enterprises. The airport started under the name "Hakenkampsveld" in 1928 and was officially opened in 1931. It was renamed "Luchthaven Eelde" in 1933. During World War II, the German military occupied the airport. Since 1958, there are European destinations from the airport. Since 1988,