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Best API to Access Charleston International Airport Data in 2025 Best API to Access Charleston International Airport Data in 2025 Introduction to Charleston International Airport Charleston International Airport (IATA: CHS, ICAO: KCHS) is located in North Charleston, South Carolina, approximately 12 miles northwest of downtown Charleston. This airport serves as the primary gateway for both domestic and international travelers to the historic city of Charleston and the surrounding Lowcountry region. The airport's geographical significance is underscored by its proximity to major tourist attractions, including the historic district of Charleston, beautiful...