Ryan Airline Company was an American airline founded by T. Claude Ryan and Benjamin Franklin "Frank" Mahoney at Dutch Flats Airport in San Diego, California, on April 19, 1925.
They had earlier established a scheduled service between San Diego and Los Angeles with a fare of $14.50 one-way and $22.50 round-trip.
[1] Service was provided by a Standard J-1, a World War I training aircraft (not widely liked by pilots) that they modified with a four-passenger closed cabin in the forward front cockpit area.
[1] They designed the Ryan M-1 for mail and passenger service, building the first of these in the fall of 1925 and 22 more within a year.
In July 1927, shortly after Lindbergh's successful flight in the Spirit of St. Louis, the name of that business was changed to B. F. Mahoney Aircraft Corporation.