| Port Huron to Redon | 3,737.60 mi (6,015.08 km) |
| Port Huron to Reims | 3,932.13 mi (6,328.15 km) |
| Port Huron to Rennes | 3,739.78 mi (6,018.59 km) |
| Port Huron to Revel | 4,051.86 mi (6,520.84 km) |
| Port Huron to Reze | 3,773.59 mi (6,073.00 km) |
| Port Huron to Riedisheim | 4,116.68 mi (6,625.16 km) |
| Port Huron to Rillieux-la-Pape | 4,087.61 mi (6,578.37 km) |
| Port Huron to Riom | 4,011.52 mi (6,455.92 km) |
| Port Huron to Riorges | 4,044.46 mi (6,508.92 km) |
| Port Huron to Ris-Orangis | 3,888.43 mi (6,257.82 km) |
| Port Huron to Rive-de-Gier | 4,086.64 mi (6,576.81 km) |
| Port Huron to Rivesaltes | 4,114.27 mi (6,621.28 km) |
| Port Huron to Rixheim | 4,118.15 mi (6,627.52 km) |
| Port Huron to Roanne | 4,045.84 mi (6,511.15 km) |
| Port Huron to Roche-la-Moliere | 4,078.00 mi (6,562.91 km) |
