| Niagara Falls to Suhut | 5,282.09 mi (8,500.70 km) |
| Niagara Falls to Sulakyurt | 5,320.38 mi (8,562.33 km) |
| Niagara Falls to Sultanbeyli | 5,115.54 mi (8,232.66 km) |
| Niagara Falls to Sultandagi | 5,308.20 mi (8,542.73 km) |
| Niagara Falls to Sultanhani | 5,409.56 mi (8,705.85 km) |
| Niagara Falls to Sultanhisar | 5,220.50 mi (8,401.58 km) |
| Niagara Falls to Suluova | 5,355.99 mi (8,619.64 km) |
| Niagara Falls to Sumbas | 5,542.57 mi (8,919.90 km) |
| Niagara Falls to Sungurlu | 5,344.20 mi (8,600.67 km) |
| Niagara Falls to Surmene | 5,506.68 mi (8,862.14 km) |
| Niagara Falls to Suruc | 5,654.08 mi (9,099.36 km) |
| Niagara Falls to Susehri | 5,476.33 mi (8,813.30 km) |
| Niagara Falls to Susurluk | 5,123.96 mi (8,246.22 km) |
| Niagara Falls to Susuz | 5,614.47 mi (9,035.61 km) |
| Niagara Falls to Sutculer | 5,349.60 mi (8,609.34 km) |
