| South San Francisco to Rhondda | 5,256.87 mi (8,460.11 km) |
| South San Francisco to Rhosllanerchrugog | 5,200.33 mi (8,369.12 km) |
| South San Francisco to Rhyl | 5,172.68 mi (8,324.63 km) |
| South San Francisco to Rhymney | 5,254.04 mi (8,455.56 km) |
| South San Francisco to Richmond | 5,358.53 mi (8,623.71 km) |
| South San Francisco to Rickmansworth | 5,344.51 mi (8,601.16 km) |
| South San Francisco to Ripley | 5,246.72 mi (8,443.77 km) |
| South San Francisco to Ripon | 5,189.76 mi (8,352.11 km) |
| South San Francisco to Risca | 5,267.22 mi (8,476.78 km) |
| South San Francisco to Rochdale | 5,197.15 mi (8,364.01 km) |
| South San Francisco to Rochester | 5,386.19 mi (8,668.24 km) |
| South San Francisco to Rock Ferry | 5,184.11 mi (8,343.02 km) |
| South San Francisco to Rogerstone | 5,269.21 mi (8,479.97 km) |
| South San Francisco to Romford | 5,366.61 mi (8,636.72 km) |
| South San Francisco to Romsey | 5,346.07 mi (8,603.67 km) |
