| Niagara Falls to Cutrofiano | 4,717.71 mi (7,592.43 km) |
| Niagara Falls to Dalmine | 4,141.64 mi (6,665.32 km) |
| Niagara Falls to Deruta | 4,359.80 mi (7,016.42 km) |
| Niagara Falls to Desenzano del Garda | 4,186.44 mi (6,737.43 km) |
| Niagara Falls to Desio | 4,127.23 mi (6,642.14 km) |
| Niagara Falls to Dolianova | 4,365.15 mi (7,025.03 km) |
| Niagara Falls to Dolo | 4,250.35 mi (6,840.27 km) |
| Niagara Falls to Domodossola | 4,071.19 mi (6,551.94 km) |
| Niagara Falls to Dorgali | 4,346.19 mi (6,994.51 km) |
| Niagara Falls to Dueville | 4,221.28 mi (6,793.49 km) |
| Niagara Falls to Eboli | 4,565.99 mi (7,348.25 km) |
| Niagara Falls to Elmas | 4,363.96 mi (7,023.11 km) |
| Niagara Falls to Empoli | 4,270.37 mi (6,872.49 km) |
| Niagara Falls to Enna | 4,661.33 mi (7,501.69 km) |
| Niagara Falls to Eraclea | 4,268.73 mi (6,869.86 km) |
