Johannesburg, and Lagos, further expanding its presence in Africa. United is also introducing flights to Nuuk, Greenland, and ...

Fourth on the list is an Africa-bound route, with United Airlines' year-round flights from Newark to Johannesburg, South Africa (JNB), clocking in at 7,989 miles (12,857 km / 6,942 NM) in length.

Johannesburg OR Tambo International Airport (JNB) is only airport in Africa with regularly passenger flights to all six ...