| Port Huron to Rury | 4,531.15 mi (7,292.19 km) |
| Port Huron to Rybnik | 4,443.74 mi (7,151.51 km) |
| Port Huron to Ryki | 4,494.49 mi (7,233.18 km) |
| Port Huron to Rypin | 4,351.05 mi (7,002.34 km) |
| Port Huron to Rzeszow | 4,566.17 mi (7,348.54 km) |
| Port Huron to Sandomierz | 4,529.34 mi (7,289.26 km) |
| Port Huron to Sanok | 4,594.81 mi (7,394.64 km) |
| Port Huron to Sedziszow Malopolski | 4,554.39 mi (7,329.57 km) |
| Port Huron to Sepolno Krajenskie | 4,271.22 mi (6,873.86 km) |
| Port Huron to Sidlice | 4,271.50 mi (6,874.31 km) |
| Port Huron to Siechnice | 4,355.23 mi (7,009.07 km) |
| Port Huron to Siedlce | 4,482.84 mi (7,214.43 km) |
| Port Huron to Siemianowice Slaskie | 4,451.04 mi (7,163.25 km) |
| Port Huron to Siemiatycze | 4,490.98 mi (7,227.54 km) |
| Port Huron to Sieradz | 4,387.75 mi (7,061.41 km) |
