Lympne Airport , was a military and later civil airfield , at Lympne, Kent, United Kingdom, which operated from 1916 to 1984. During the First World War RFC Lympne was originally an acceptance point for aircraft being delivered to, and returning from, France but was later designated as a First Class Landing Ground, RAF Lympne. It became a civil airfield in 1919 and saw the operation of early air mail services after the 1918 armistice. It was one of the first four airfields in the United Kingdom with customs facilities.