Charlotte Airport code is CLT. The ICAO code for this airport is KCLT and IATA code for this airport is CLT. This office is found six miles from Charlotte's fundamental city in North Carolina. Its stature above ocean level is 228 meters. As exhibited by a report, the airport with the Charlotte Douglas International Airport code CLT invites in excess of 50 million travelers reliably and serves more than. Visit our site for more information.