In the immediate post-war period, several factors were working against the widespread expansion of aviation, particularly in the U.S. North America had precious few airfields in existence of under construction. Also, there was still the problem of passenger aircraft, or lack thereof.
Nonetheless, aviation, related businesses managed to develop and grow.
Shortly thereafter, the first scheduled airline service was established between England and the European continent. Regular service aboard de Haviland DH-4s and DH-6s began in August 1919, linking London and Paris.
In the 1920s, American aviators grabbed the international spotlight with daring aerial feats.
None were more heroic than Charles Lindbergh's solo flight across the Atlantic in 1927. Aboard a Ryan monoplane loaded with sandwiches, but without the aid of a radio or sextant, Lindbergh left a Long Island airfield on May 20. Thirty-three hours and thirty minutes later, he touched down in Le Bourget, France, the first aviator to cross the Atlantic Ocean solo.
Three months later she crossed the continental United States from New York to Los Angeles without stopping. Both feats were firsts for women, and no doubt served to encourage young women and men to pursue the field of aviation.
The first scheduled international air service in America was founded when Aeromarine West Indies Airways began service between Key West, Florida and Havana, Cuba. Curtiss Flying Boats were used on this route, a practice that became widespread due to the lack of land-based airfields.
The Flying Boats of the 1920s fell out of favor in the late 1930s, since they were unable to reach landlocked cities, but not before some spirited production of some classic amphibious aircraft.