https://www.gov.uk/foreign-travel-ad...na/coronavirus
International travelThere are currently no commercial flights in to or out of Botswana. Medical evacuation flights remain possible. The Botswana authorities have also closed land border posts with neighbouring countries. Only citizens and residents will be allowed entry. Returning residents, including from the UK, will be subject to a 14-day mandatory quarantine period in government facilities.
https://www.osac.gov/Content/Report/...1-188400978318
There are currently no commercial flights, special flights or government charters available. Be prepared to shelter in place until commercial flights resume or borders open, which could be several months.