Question: Quincy Regional Airport, is a city owned public airport 12 miles east of Quincy, a city in Adams County, Illinois, it is used for general aviation but also sees which American airline headquartered in Fort Worth, Texas, within the Dallas-Fort Worth metroplex?
Context: Interstate 20 in Texas (abbreviated I-20 or IH-20) is a major east–west Interstate Highway in the Southern United States, running east from a junction with Interstate 10 east of Kent, Texas, through the Dallas-Fort Worth Metroplex to the border with Louisiana near Waskom, Texas.  The original distance of Interstate 20 was 647 mi from I-10 to the Louisiana border, reduced to the current distance of 636 mi with the rerouting of I-20 in the 1980s and 1990s.  I-20 is known as the Ronald Reagan Memorial Highway within the Dallas-Fort Worth Metroplex. Greater Southwest International Airport (IATA: GSW, ICAO: KGSW) , originally Amon Carter Field (ACF), is a now closed commercial airport serving Fort Worth, Texas, from 1953 until 1974.  Dallas-Fort Worth International Airport (DFW) opened in 1974 a few miles north of the airport as the planned replacement for both Greater Southwest and Dallas Love Field (DAL) as the single main airport for all scheduled airline flights for the Dallas-Fort Worth Metroplex, although Love Field survives with Southwest Airlines being the major carrier there.  The area is now a commercial/light-industrial park serving DFW International, centered along Amon Carter Boulevard, which was originally constructed from the old airport's north-south runway. Haltom City is a city that is part of the Dallas-Fort Worth region and inside Tarrant County, Texas, United States.  The population was 42,409 at the 2010 census.  Haltom City is a inner suburb of Fort Worth, a principal city of the DFW Metroplex.  The city is 6 miles from Downtown Fort Worth, 30 miles from the American Airlines Center in Dallas, and 20 miles from the Dallas/Fort Worth International Airport in Irving.  Haltom is surrounded almost entirely by Fort Worth, North Richland Hills, Watauga, and Richland Hills. Fort Worth Meacham International Airport (Meacham Field) (IATA: FTW, ICAO: KFTW, FAA LID: FTW) is a general aviation airport in Fort Worth, Texas similar to Addison Airport on the Dallas side of the Dallas-Fort Worth metroplex.  It is at the intersection of Interstate 820 and U.S. Business Highway 287 in northwest Fort Worth, near downtown.  It has two parallel runways; the old runway 9-27 is now closed permanently.  The airport is named after former Fort Worth Mayor Henry C. Meacham. The history of shopping malls in Texas began with the oldest shopping center in the United States, Highland Park Village, which opened in 1931 in the Dallas–Fort Worth Metroplex.  The Dallas-Fort Worth Metroplex and Greater Houston areas are both home to numerous regional shopping malls and shopping centers located in various areas of the city. Quincy Regional Airport (IATA: UIN, ICAO: KUIN, FAA LID: UIN) (Baldwin Field) is a city owned public airport 12 miles east of Quincy, a city in Adams County, Illinois.  It is used for general aviation but also sees American Airlines partner Cape Air with subsidized Essential Air Service flights to Lambert-St.  Louis International Airport, a service which is subsidized by the federal government's Essential Air Service program at a cost of $1,956,856 (per year). Manhattan Regional Airport (IATA: MHK, ICAO: KMHK, FAA LID: MHK) in Riley County, Kansas is the second-busiest commercial airport in Kansas.  It is owned by the city of Manhattan, Kansas, and is about five miles southwest of downtown Manhattan.  American Airlines serves the airport with five daily flights to Chicago O'Hare International Airport and Dallas/Fort Worth International Airport.  The airport is also used for general aviation and for planes chartered by the military and college sports teams (the airport is four miles east of Fort Riley and eight miles southwest of Kansas State University's athletic complex). Fort Worth Spinks Airport (ICAO: KFWS, FAA LID: FWS) is a city owned, public use airport located 14 nautical miles (26 km) south of the central business district of Fort Worth, in Tarrant County, Texas, United States.  It is the newest of the three airports that are owned by the City of Fort Worth and it serves the cities of Fort Worth, Burleson, and Mansfield.  The airport is located at the intersection of Interstate 35W and HWY 1187 and serves as a reliever airport for Fort Worth Meacham International Airport and Dallas-Fort Worth International Airport.  It was one of few airports in the country to have Class E airspace and a control tower.  However, its airspace now has Class D designation. American Airlines, Inc. (AA) is an American airline headquartered in Fort Worth, Texas, within the Dallas-Fort Worth metroplex.  It is the world's largest airline when measured by fleet size, revenue, scheduled passenger-kilometers flown, and number of destinations served.  American together with its regional partners operates an extensive international and domestic network with an average of nearly 6,700 flights per day to nearly 350 destinations in more than 50 countries. State Highway 183 or SH 183 is a state highway in the Dallas-Fort Worth metroplex in Texas.  Its most heavily used section is designated Airport Freeway where it serves the southern entrance of Dallas-Fort Worth International Airport.
Answer: American Airlines, Inc.