| Niagara Falls to Saarijarvi | 4,032.45 mi (6,489.59 km) |
| Niagara Falls to Salo | 4,062.60 mi (6,538.12 km) |
| Niagara Falls to Sastamala | 4,020.43 mi (6,470.26 km) |
| Niagara Falls to Savonlinna | 4,160.97 mi (6,696.44 km) |
| Niagara Falls to Seinajoki | 3,964.98 mi (6,381.02 km) |
| Niagara Falls to Siilinjarvi | 4,080.22 mi (6,566.48 km) |
| Niagara Falls to Sipoo | 4,123.63 mi (6,636.34 km) |
| Niagara Falls to Sippola | 4,156.89 mi (6,689.87 km) |
| Niagara Falls to Sodankyla | 3,887.39 mi (6,256.15 km) |
| Niagara Falls to Somero | 4,064.28 mi (6,540.83 km) |
| Niagara Falls to Sotkamo | 4,056.03 mi (6,527.55 km) |
| Niagara Falls to Tampere | 4,038.14 mi (6,498.76 km) |
| Niagara Falls to Tornio | 3,887.62 mi (6,256.51 km) |
| Niagara Falls to Turku | 4,035.66 mi (6,494.77 km) |
| Niagara Falls to Tuusula | 4,115.16 mi (6,622.71 km) |
