| Niagara Falls to Recica | 4,328.42 mi (6,965.92 km) |
| Niagara Falls to Ribnica | 4,344.03 mi (6,991.03 km) |
| Niagara Falls to Ribnica | 4,333.70 mi (6,974.41 km) |
| Niagara Falls to Rogaska Slatina | 4,360.08 mi (7,016.87 km) |
| Niagara Falls to Rogasovci | 4,352.55 mi (7,004.76 km) |
| Niagara Falls to Rogatec | 4,362.98 mi (7,021.53 km) |
| Niagara Falls to Ruse | 4,343.06 mi (6,989.48 km) |
| Niagara Falls to Salovci | 4,361.94 mi (7,019.86 km) |
| Niagara Falls to Selnica ob Dravi | 4,341.75 mi (6,987.37 km) |
| Niagara Falls to Semic | 4,365.08 mi (7,024.91 km) |
| Niagara Falls to Sempeter pri Gorici | 4,293.36 mi (6,909.50 km) |
| Niagara Falls to Sencur | 4,311.85 mi (6,939.25 km) |
| Niagara Falls to Sentilj | 4,342.53 mi (6,988.62 km) |
| Niagara Falls to Sentjernej | 4,363.93 mi (7,023.06 km) |
| Niagara Falls to Sentjur | 4,351.18 mi (7,002.54 km) |
