Question: Which Airport is further south Homer Airport or Charleston International Airport?
Context: Greenville–Spartanburg International Airport (IATA: GSP, ICAO: KGSP, FAA LID: GSP) (Roger Milliken Field) is near Greer, South Carolina, midway between Greenville and Spartanburg, the major cities of the Upstate region.  The airport is the second-busiest airport in South Carolina, after Charleston International Airport, with about 2.02 million passengers in 2016. Homer Airport (IATA: HOM, ICAO: PAHO, FAA LID: HOM) is a state-owned public-use airport located two nautical miles (4 km) east of the central business district of Homer, a town in the Kenai Peninsula Borough of the U.S. state of Alaska. The North Charleston Coliseum is a 14,000-seat multi-purpose arena in North Charleston, South Carolina.  It is part of the North Charleston Convention Center Complex, which also includes a Performing Arts Center, and is owned by the City of North Charleston and managed by SMG.  The Coliseum was built in 1993 (the Performing Arts Center and Convention Center opened in 1999), and is located on the access road to the Charleston International Airport. Charleston International Airport (IATA: CHS, ICAO: KCHS, FAA LID: CHS) is a joint civil-military airport located in North Charleston, South Carolina.  The airport is operated by the Charleston County Aviation Authority under a joint-use agreement with Joint Base Charleston.  It is South Carolina's largest and busiest airport; in 2016 the airport served over 3.7 million passengers in its busiest year on record.  The airport is located in North Charleston and is approximately 12 mi northwest of downtown Charleston.  The airport is also home to the Boeing facility that assembles the 787 Dreamliner. Gimpo International Airport (Korean: 김포국제공항 ] ), commonly known as Gimpo Airport (IATA: GMP, ICAO: RKSS) (formerly and originally Kimpo International Airport), is located in the far western end of Seoul, some 15 km west of the Central District of Seoul.  Gimpo was the main international airport for Seoul and South Korea before being replaced by Incheon International Airport in 2001.  In 2015, 23,163,778 passengers used the airport, making it the third largest airport in Korea, as it has been surpassed by Jeju International Airport. Hato International Airport or Curaçao International Airport (formerly "Dr. Albert Plesman International Airport") (IATA: CUR, ICAO: TNCC) is the airport of Willemstad, Curaçao.  It has services to the Caribbean region, South America, North America and Europe.  Hato Airport is a fairly large facility, with the third longest commercial runway in the Caribbean region after Rafael Hernández Airport in Puerto Rico and Pointe-à-Pitre International Airport in Guadeloupe.  The airport serves as a main base for Insel Air. Ngurah Rai International Airport (Indonesian: "Bandar Udara Internasional Ngurah Rai" ) (IATA: DPS, ICAO: WADD) , also known as Denpasar International Airport or I Gusti Ngurah Rai International Airport, is the main airport in Bali, located 13 km south of Denpasar.  Ngurah Rai is the third busiest airport in Indonesia after Soekarno–Hatta International Airport and Juanda International Airport.  In first half year of 2017, the airport served 10,156,686 passengers.  The airport has category IX and is capable of serving wide-body aircraft including the Airbus A380. A major airport has been proposed to be built in Peotone, Illinois, a suburb of Chicago.  There is no official name and two separate plans exist, one known as the "South Suburban Airport" and another known as "Abraham Lincoln National Airport".  The FAA refers to the two proposals as South Suburban Airport.  The airport would serve as an additional airport in the Chicago metropolitan area.  Supporters of the airport say it will bring new jobs to the southern suburbs and the entire Chicago region, while relieving critical runway and terminal congestion at O'Hare International Airport and Chicago Midway International Airport.  A new airport would accommodate large jet service similar to that of O'Hare, but that Midway International Airport does not offer. Bishop International Airport (IATA: FNT, ICAO: KFNT, FAA LID: FNT) is a commercial and general aviation airport located in Flint, Michigan.  It is named after banker and General Motors board member Arthur Giles Bishop (April 12, 1851 – January 22, 1944), who donated 220 acres of his farmland for the airport in 1928.  The third busiest airport in Michigan, it surpassed competitor MBS International Airport in terms of airline operations in 2002.  In 2007, 1,071,238 passengers used Bishop International Airport; in 2011, 938,914 passengers used the airport.  It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a small hub primary commercial service facility.  The airport is currently served by several passenger airlines: Allegiant Air, Southwest Airlines and Delta Air Lines operate mainline service out of the airport, as well as affiliates of Delta Connection, United Express and American Eagle.  Additionally, FedEx Express and a FedEx Feeder affiliate operate cargo services out of the airport.  Accompanying the airlines is fixed-base operator Av Flight that handles both general aviation and airline operations and the flight school American Wings Aviation.  Bishop International Airport is in southwestern Flint, and is surrounded by Flint Township to the north, east and west; and Mundy Township to the south. Ottawa/Macdonald–Cartier International Airport or Macdonald–Cartier International Airport ("L'aéroport international Macdonald-Cartier" in French), (IATA: YOW, ICAO: CYOW) in Ottawa, Ontario, Canada is an international airport named after the Canadian statesmen and two of the "founding fathers of Canada", Sir John A. Macdonald and Sir George-Étienne Cartier.  Located in the south end of the city, 5.5 NM south of downtown Ottawa, it is Canada's sixth-busiest airport and Ontario's second-busiest airport by airline passenger traffic and Canada's seventh-busiest by aircraft movements, with 4,743,091 passengers and 153,347 aircraft movements in 2016.  The airport is an Air Canada focus city and the home base for First Air.  The airport is classified as an airport of entry by Nav Canada and is staffed by the Canada Border Services Agency.  The airport is one of eight Canadian airports that have United States border preclearance facilities.  The airport used to be a military base known as CFB Ottawa South/CFB Uplands.  Although it is no longer a Canadian Forces Base it is still home to the Royal Canadian Air Force's 412 Transport Squadron.
Answer: Charleston International Airport