Charleston International Airport (IATA: CHS, ICAO: KCHS, FAA LID: CHS) is a joint civil-military airport located in North Charleston, South Carolina, United States. The airport is operated by the Charleston County Aviation Authority under a joint-use agreement with Joint Base Charleston. It is South Carolina's busiest airport; in 2022 the airport served over 5. 3 million passengers in its busiest year on record. The airport is located in North Charleston and is approximately 12 miles (19 km) nor... Charleston International Airport (IATA: CHS, ICAO: KCHS, FAA LID: CHS) is a joint civil-military airport located in North Charleston, South Carolina, United States. The airport is operated by the Charleston County Aviation Authority under a joint-use agreement with Joint Base Charleston. It is South Carolina's busiest airport; in 2022 the airport served over 5. 3 million passengers in its busiest year on record. The airport is located in North Charleston and is approximately 12 miles (19 km) northwest of downtown Charleston. The airport serves as a focus city for Breeze Airways. It is also home to the Boeing facility that assembles the 787 Dreamliner.