Question: Where is the company headquarters of the airline whose call sign was named after a former U.S. Air Mail pilot?

 Wholly owned by Trans States Holdings, it has 1670 employees.  It operates commuter feeder services under the United Express and Delta Connection names.  Go Jet Airlines has crew bases at Lambert-Saint Louis International Airport, O'Hare International Airport, Denver International Airport, and Raleigh-Durham International Airport.  Flights are currently operated out of United's hubs at O'Hare International Airport and Denver International Airport, as well as Lambert-Saint Louis International Airport.  GoJet's Delta Connection flights currently operate out of Lambert-Saint Louis International Airport , Detroit Metropolitan Airport and Raleigh-Durham International Airport.  Its call sign "Lindbergh" is named after aviation pioneer Charles Lindbergh, who flew the "Spirit of St. Louis" solo across the Atlantic Ocean in 1927, the first person to do so. GoJet Airlines LLC is a company headquartered in Bridgeton, Missouri, United States. <SEP> Leon Dewey "Lee" Cuddeback (May 16, 1898 - July 6, 1984) flew the first scheduled, civilian Air Mail (Contract Air Mail) flight in the United States on April 6, 1926.  He did so as chief pilot of Varney Air Lines.  His route began in Pasco, Washington, had a stop in Boise, Idaho, and terminated in Elko, Nevada.  Because the start of the contract air mail system is considered the beginning of airline service, Cuddeback's flight is cited as the first U.S. airline flight, and is also celebrated as the "birthday" of United Airlines. <SEP>  At age 25 in 1927, he went from obscurity as a U.S. Air Mail pilot to instantaneous world fame by making his Orteig Prizewinning nonstop flight from Long Island, New York, to Paris.  He covered the 33 ⁄ -hour, 3,600 smi alone in a single-engine purpose-built Ryan monoplane, "Spirit of St. Louis". Charles Augustus Lindbergh (February 4, 1902 – August 26, 1974), nicknamed Slim, Lucky Lindy, and The Lone Eagle, was an American aviator, military officer, author, inventor, explorer, and environmental activist.  This was the first solo transatlantic flight and the first non-stop flight between North America and mainland Europe.  Lindbergh was an officer in the U.S. Army Air Corps Reserve, and he received the United States' highest military decoration, the Medal of Honor, for the feat. <SEP> KIPA (1060 AM) is a radio station on the Big Island of Hawai'i whose call sign dates back to 1947, and now broadcasts an eclectic mix of Hawaiian Music, Reggae, Jazz, Blues, Oldies and a variety of special programs including a Japanese show early mornings.  Licensed to Hilo, Hawaii, United States, the station serves the Hilo market and surrounding areas.  Long-time local personality, Mel Mederios, also known as the "Mynah Bird" hosts the morning show, with local and regional news, events and community affairs information.  The station is currently owned by Parrott Broadcasting Limited Partnership and features programing from CNN Radio.  It also has two sister FM stations: KHBC 92.7 FM and a second FM station on the west side of the Big Island known as "KONA-FM" with the FCC call sign KHWI 92.1 FM (formerly known as "K-Hawaii"), licensed at Holualoa, HI, serving the Kailua-Kona market, and broadcasting from studios at the Sheraton Keauhou Bay Resort & Spa.