In 2002, an estimated 12,000 km (7,457 mi) of road, one of the most intensive systems in all of Africa, radiated through Rwanda, but only about 1,000 km (621 mi) were paved. Five principal roads connect Kigali to other Rwandan cities, and an asphalted road connects Butare and Cyangugu. Most roads become impassable during the rainy season, and there are few bridges. In 1995, there were 7,868 automobiles, and 2,048 commercial vehicles in use. Bus service connects Kigali to the 10 prefectures. The most important roads for landlocked Rwanda's external trade run from Kigali to Kibungo and from Kigali to Kakitumba, thence connecting by road and rail with Indian Ocean ports in Tanzania and Kenya. About 90% of foreign trade is via the Kakitumba route, which leads to the Kenyan ports via Uganda. Rwanda has no railroads. There is traffic on Lake Kivu to the DROC from Gisenyi, Kibuye, and Cyangugu.
There were 8 airports in 2001, 4 of which had paved runways. International airports are at Kigali-Kanombe and at Kamembe, served by Air Rwanda, Sabena, Air Zaïre, Aeroflot, Air Burundi, Kenya Airways, Air Tanzania, Ethiopian Airlines, and Air France. Direct flights from Europe are available from Brussels, Paris, and Athens. Internal air traffic is provided by Air Rwanda to six domestic airfields.