This website shows you which cities are the furthest away from other major cities. For instance, the furthest city from Toronto is Perth (which is true for dozens of cities worldwide).
|Vancouver (BC), Canada||Umlazi, South Africa||16,948|
If you’re a stickler for detail, then here it is:
Furthest Cities (Population 100k+)
|Umlazi, South Africa||16,948|
|Durban, South Africa||16,948|
|Port Elizabeth, South Africa||16,934|
|Pietermaritzburg, South Africa||16,886|