| Niagara Falls to Redon | 3,590.39 mi (5,778.17 km) |
| Niagara Falls to Reims | 3,791.71 mi (6,102.17 km) |
| Niagara Falls to Rennes | 3,593.65 mi (5,783.41 km) |
| Niagara Falls to Revel | 3,900.36 mi (6,277.02 km) |
| Niagara Falls to Reze | 3,625.88 mi (5,835.28 km) |
| Niagara Falls to Riedisheim | 3,975.81 mi (6,398.45 km) |
| Niagara Falls to Rillieux-la-Pape | 3,941.73 mi (6,343.60 km) |
| Niagara Falls to Riom | 3,864.56 mi (6,219.41 km) |
| Niagara Falls to Riorges | 3,898.36 mi (6,273.81 km) |
| Niagara Falls to Ris-Orangis | 3,745.82 mi (6,028.31 km) |
| Niagara Falls to Rive-de-Gier | 3,940.09 mi (6,340.96 km) |
| Niagara Falls to Rivesaltes | 3,962.32 mi (6,376.74 km) |
| Niagara Falls to Rixheim | 3,977.30 mi (6,400.85 km) |
| Niagara Falls to Roanne | 3,899.75 mi (6,276.04 km) |
| Niagara Falls to Roche-la-Moliere | 3,931.10 mi (6,326.49 km) |
