| Port Huron to Recica | 4,465.91 mi (7,187.19 km) |
| Port Huron to Ribnica | 4,482.63 mi (7,214.10 km) |
| Port Huron to Ribnica | 4,470.54 mi (7,194.64 km) |
| Port Huron to Rogaska Slatina | 4,497.12 mi (7,237.42 km) |
| Port Huron to Rogasovci | 4,488.31 mi (7,223.23 km) |
| Port Huron to Rogatec | 4,499.98 mi (7,242.02 km) |
| Port Huron to Ruse | 4,479.70 mi (7,209.38 km) |
| Port Huron to Salovci | 4,497.44 mi (7,237.93 km) |
| Port Huron to Selnica ob Dravi | 4,478.38 mi (7,207.26 km) |
| Port Huron to Semic | 4,503.46 mi (7,247.61 km) |
| Port Huron to Sempeter pri Gorici | 4,432.56 mi (7,133.51 km) |
| Port Huron to Sencur | 4,449.89 mi (7,161.40 km) |
| Port Huron to Sentilj | 4,478.82 mi (7,207.96 km) |
| Port Huron to Sentjernej | 4,501.87 mi (7,245.07 km) |
| Port Huron to Sentjur | 4,488.45 mi (7,223.46 km) |
