Lufthansa German Airlines is the largest airline within the Lufthansa Group and the first and only European airline to receive a 5-Star Skytrax rating. As one of the world's leading airlines, Lufthansa currently operates to 209 destinations in 74 countries around the world from of its hubs in Frankfurt and Munich. In the 2017 business year, the airline welcomed around 66 million passengers on board its flights. The Lufthansa passenger fleet consists of 357 aircraft (as of 31.12.2017) and will continue to take delivery of new aircraft until 2025. Revenue at Lufthansa German Airlines rose to EUR 16.4 billion in 2017. The airline employs over 33,000 employees.