Question: Is Quad City International Airport or Harrisburg International Airport further west?
Context: Mississippi Valley Airlines (IATA--XV), was a regional air carrier serving the Upper Midwestern region of the United States.  It was founded as Gateway Aviation, and had its headquarters in La Crosse, Wisconsin.  It began scheduled flight operations on July 22, 1968 between La Crosse Municipal Airport and both Chicago (O'Hare International Airport) and Milwaukee (General Mitchell International Airport).  The carrier changed its name to Mississippi Valley Airways in October 1969.  It became Mississippi Valley Airlines (MVA) and moved its headquarters to Quad City Airport in Moline, Illinois in January 1982.  The airline merged into Air Wisconsin in 1985. Pennsylvania Route 230 (PA 230) is a 28.4 mi long state route in central Pennsylvania.  Its western terminus is at an intersection with U.S. Route 22 (US 22) in Harrisburg.  Its eastern terminus is at an interchange with PA 283 near Salunga.  The route passes through Dauphin and Lancaster counties and serves as a surface road parallel to the PA 283 freeway that connects the cities of Harrisburg and Lancaster.  Along the way, PA 230 passes through Middletown, Elizabethtown, and Mount Joy.  The route intersects the Airport Connector near the Harrisburg International Airport, PA 441 and PA 341 in the Middletown area, PA 241 and PA 743 in Elizabethtown, and PA 772 in Mount Joy. Harrisburg Air National Guard Base is a United States Air Force base, located at Harrisburg International Airport, (IATA: MDT, ICAO: KMDT, FAA LID: MDT) Pennsylvania.  It is located 1.7 mi west-southwest of Middletown, Pennsylvania. Guadalajara International Airport (Spanish: "Aeropuerto Internacional de Guadalajara" ), officially known as Miguel Hidalgo y Costilla Guadalajara International Airport (Spanish: "Aeropuerto Internacional de Guadalajara Miguel Hidalgo y Costilla" ) (IATA: GDL, ICAO: MMGL) , is the main airport of Mexico's second-largest city Guadalajara.  Opened in 1966, it is located 16 km south of the city center.  In 2015 it handled 9,758,516 passengers, and in 2016 it handled 11,395,800.  It is Mexico's third-busiest airport, after Mexico City International Airport and Cancún International Airport and second-busiest for cargo flights. Quad City International Airport (IATA: MLI, ICAO: KMLI, FAA LID: MLI) is a public airport in Rock Island County, Illinois, three miles (5 km) south of Moline.  It is owned and operated by the Metropolitan Airport Authority of Rock Island County.  It is partly in Blackhawk Township and partly in Coal Valley Township.  In 2012 it was named "Illinois Primary Airport of the Year". Harrisburg International Airport (IATA: MDT, ICAO: KMDT, FAA LID: MDT) is a public airport in Lower Swatara Township, Pennsylvania, nine miles (15 km) southeast of Harrisburg.  It is owned by the Susquehanna Area Regional Airport Authority. The Airport Connector is a 1.9 mi freeway in the Harrisburg, Pennsylvania, area in the United States.  It begins at Pennsylvania Route 283 (PA 283) and ends at Harrisburg International Airport.  There is one intermediate exit with PA 230.  The highway is internally designated as State Route 3032 by the Pennsylvania Department of Transportation. Jednota is an unincorporated community in Dauphin County, Pennsylvania, United States, near the Harrisburg International Airport.  The community is part of the Harrisburg–Carlisle Metropolitan Statistical Area. The Susquehanna Area Regional Airport Authority (SARAA) is the governing authority of Harrisburg International Airport, Capital City Airport, Franklin County Regional Airport and Gettysburg Regional Airport in south-central Pennsylvania.  SARAA was incorporated on September 9, 1997, and officially took over control of HIA and CXY airports from the Commonwealth of Pennsylvania on January 1, 1998. Mexico City International Airport (Spanish: "Aeropuerto Internacional de la Ciudad de México, AICM" ); officially "Aeropuerto Internacional Benito Juárez" (English: "Benito Juárez International Airport" ) (IATA: MEX, ICAO: MMMX) is an international airport that serves Greater Mexico City.  It is Mexico's and Latin America's busiest airport by passenger traffic and aircraft movements.  The airport sustains 35,000 jobs directly and around 15,000 indirectly in the immediate area.  The airport is owned by Grupo Aeroportuario de la Ciudad de México and operated by Aeropuertos y Servicios Auxiliares, the government-owned corporation, which also operates 22 other airports throughout Mexico.  In recent years Toluca Airport has become an alternate airport.
Answer: Quad City International Airport