An international flight is a form of commercial flight within civil aviation where the departure and the arrival take place in different countries. Regular international passenger air service began in August 1919 with a flight going from London, England to Paris, France. The journey was organized and operated by the firm Air Transport & Travel Ltd (AT&T), which would later serve as a forerunner of British Airways (BA). Besides ferrying travelers, the flights, which occurred daily, also transported mail and parcels. The De Havilland DH4A aircraft had gotten designed for combat during the First World War but saw intricate later use. Looking back, historical writer Paul Jarvis has commented that during the "very early days it was very much just about persuading people to fly at all" given tha