| Port Huron to Prokuplje | 4,854.17 mi (7,812.03 km) |
| Port Huron to Raca | 4,786.29 mi (7,702.79 km) |
| Port Huron to Raska | 4,814.62 mi (7,748.39 km) |
| Port Huron to Razanj | 4,833.19 mi (7,778.27 km) |
| Port Huron to Rekovac | 4,808.42 mi (7,738.40 km) |
| Port Huron to Ruma | 4,708.91 mi (7,578.26 km) |
| Port Huron to Sabac | 4,714.42 mi (7,587.12 km) |
| Port Huron to Secanj | 4,727.81 mi (7,608.68 km) |
| Port Huron to Senta | 4,677.52 mi (7,527.74 km) |
| Port Huron to Sid | 4,681.18 mi (7,533.63 km) |
| Port Huron to Sjenica | 4,792.13 mi (7,712.18 km) |
| Port Huron to Smederevo | 4,765.00 mi (7,668.52 km) |
| Port Huron to Smederevska Palanka | 4,779.44 mi (7,691.77 km) |
| Port Huron to Sokobanja | 4,845.89 mi (7,798.71 km) |
| Port Huron to Sombor | 4,647.72 mi (7,479.78 km) |
