EcoBus Coaches offers daily buses to Juba, South Sudan, departing at 6 AM and 8 PM. You can contact EcoBus Coaches by calling +256200766100 or WhatsApping 0776888055. REGIONAL Bus Services also offers daily trips to Juba from Kampala, departing at 2 AM and arriving at 4:30 PM. The easiest way to travel to Juba from Nairobi, Kenya, is to pass through Kampala, Uganda. However, some say the journey is long and draining. To enter South Sudan, you need a Yellow Fever Vaccination Certificate