When flying from Charlotte to Botswana, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
If you book a flight to Botswana from Charlotte, you will be flying from Douglas, which is the city’s only airport. Charlotte Douglas (CLT) is located 5.7 mi from the center of Charlotte.
These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Charlotte Douglas Airport to Gaborone Sir Seretse Khama Airport flight would often be abbreviated as a CLT to GBE flight. Maun Airport (MUB), Kasane Airport (BBK), Francistown Airport (FRW) are some additional IATA codes for airports related to your trip.