InterSky, legally Intersky Luftfahrt GmbH, was an Austrian airline headquartered in Bregenz, which operated scheduled services from its base at Friedrichshafen Airport, Germany, to major cities in Germany, Austria and Switzerland, as well as seasonal holiday flights to the Mediterranean from other airports. The airline ceased operations on the evening of 5 November 2015 due to financial difficulties.

Friedrichshafen Airport is a minor international airport 1.9 miles (3 km) north of Friedrichshafen, Germany, on the banks of Lake Constance. It is the third biggest airport in the German state of Baden-Württemberg after Stuttgart and Karlsruhe/Baden-Baden and served 559,985 passengers in 2015. Friedrichshafen features flights to European metropolitan and leisure destinations. Due to its proximity to the Austrian Alps it is also heavily used during the winter by skiing tourists.