| Niagara Falls to Sucha Beskidzka | 4,367.27 mi (7,028.44 km) |
| Niagara Falls to Suchanino | 4,151.28 mi (6,680.84 km) |
| Niagara Falls to Sulechow | 4,133.14 mi (6,651.64 km) |
| Niagara Falls to Sulecin | 4,101.71 mi (6,601.07 km) |
| Niagara Falls to Sulejowek | 4,325.12 mi (6,960.60 km) |
| Niagara Falls to Suwalki | 4,304.81 mi (6,927.93 km) |
| Niagara Falls to Swarzedz | 4,172.51 mi (6,715.01 km) |
| Niagara Falls to Swidnica | 4,211.00 mi (6,776.96 km) |
| Niagara Falls to Swidnik | 4,416.23 mi (7,107.23 km) |
| Niagara Falls to Swidwin | 4,075.70 mi (6,559.21 km) |
| Niagara Falls to Swiebodzice | 4,204.92 mi (6,767.17 km) |
| Niagara Falls to Swiecie | 4,181.32 mi (6,729.18 km) |
| Niagara Falls to Swiedbodzin | 4,123.95 mi (6,636.86 km) |
| Niagara Falls to Swietochlowice | 4,320.84 mi (6,953.73 km) |
| Niagara Falls to Swinoujscie | 4,018.13 mi (6,466.56 km) |
