Chalk 's had claimed to be the oldest continuously operating airline in the world , having begun operations in 1917 and scheduled flights in February 1919 , and having only ceased operations for three years due to World War II , two days due to 1992 's Hurricane Andrew , and eleven months due to an " at altitude tragedy " on December 19 , 2005 . The title of oldest operating airline is now given to KLM of the Netherlands , founded later in 1919
at altitude tragedy
Chalk's Ocean Airways Flight 101
Chalk's International Airlines