| Niagara Falls to Droylsden | 3,428.36 mi (5,517.41 km) |
| Niagara Falls to Dudley | 3,455.63 mi (5,561.29 km) |
| Niagara Falls to Dukinfield | 3,431.47 mi (5,522.42 km) |
| Niagara Falls to Dumbarton | 3,281.51 mi (5,281.08 km) |
| Niagara Falls to Dumfries | 3,336.23 mi (5,369.14 km) |
| Niagara Falls to Dunbar | 3,355.72 mi (5,400.51 km) |
| Niagara Falls to Dunblane | 3,298.70 mi (5,308.74 km) |
| Niagara Falls to Dundee | 3,329.18 mi (5,357.79 km) |
| Niagara Falls to Dunfermline | 3,320.43 mi (5,343.71 km) |
| Niagara Falls to Dunstable | 3,533.43 mi (5,686.50 km) |
| Niagara Falls to Durham | 3,418.96 mi (5,502.29 km) |
| Niagara Falls to Ealing | 3,552.28 mi (5,716.84 km) |
| Niagara Falls to Earlestown | 3,410.26 mi (5,488.29 km) |
| Niagara Falls to Earley | 3,529.57 mi (5,680.30 km) |
| Niagara Falls to East Barnet | 3,554.15 mi (5,719.85 km) |
