The runway has a slope, so planes can take off one way only, which can be a problem when the wind is in the wrong direction. If the tailwind is too high and the plane is full, be prepared to wait. If storms or clouds close in, then the plan diverts to Durban and you are in for a long diversion or delay.
Cheetah coaches offer a bus service between central Pietermaritzburg and central Durban and Durban airport. Depending on demand, there is a minimum of 1 bus per day. They haven't quite hit the 21st Century yet and the only way that you can book / contact them is by telephone on +27 33 387 1142.
Avis Car Rentals, whose slogan, "We Try Harder", is probably well-known to the public, has a conveniently placed office at the Oribi Airport. Avis Car Hire offers a wide selection of cars ranging from small economy to comfortable and up-market models with a choice of daily or leisure rates. For more information on conditions of hire.
While minibuses in most parts of Southern Africa are practical and frequent ways to get from one point to another, safety concerns in some areas should make you think twice before boarding. The reputations of minibus taxis in Johannesburg and Cape Town are particularly suspect; robberies are not uncommon, and news of "wars" (anything from scuffles to outright shooting) between competing drivers makes many travelers stick to other options. Reckless driving and speeding among South African long-distance minibus drivers has been a major problem in the past, but new, well-enforced legislation that mandates speed limits and license requirements has made this concern more infrequent. Always follow two rules: 1) talk to locals you trust to learn about minibus safety in your area, and 2) never board a minibus unless you are positive that this minibus will get you there. And don't even consider riding a minibus after dark.