| Niagara Falls to Roznava | 4,445.93 mi (7,155.03 km) |
| Niagara Falls to Ruzomberok | 4,384.00 mi (7,055.37 km) |
| Niagara Falls to Sabinov | 4,447.41 mi (7,157.42 km) |
| Niagara Falls to Sal'a | 4,368.69 mi (7,030.73 km) |
| Niagara Falls to Samorin | 4,352.42 mi (7,004.54 km) |
| Niagara Falls to Senec | 4,348.03 mi (6,997.48 km) |
| Niagara Falls to Senica | 4,328.36 mi (6,965.82 km) |
| Niagara Falls to Sered' | 4,357.66 mi (7,012.97 km) |
| Niagara Falls to Skalica | 4,316.72 mi (6,947.08 km) |
| Niagara Falls to Smizany | 4,433.53 mi (7,135.08 km) |
| Niagara Falls to Snina | 4,490.88 mi (7,227.37 km) |
| Niagara Falls to Spisska Nova Ves | 4,435.41 mi (7,138.10 km) |
| Niagara Falls to Stara L'ubovna | 4,424.30 mi (7,120.22 km) |
| Niagara Falls to Stara Tura | 4,336.78 mi (6,979.37 km) |
| Niagara Falls to Stropkov | 4,463.62 mi (7,183.51 km) |
