| Niagara Falls to Dewsbury | 3,443.28 mi (5,541.42 km) |
| Niagara Falls to Deysbrook | 3,399.84 mi (5,471.51 km) |
| Niagara Falls to Didcot | 3,512.69 mi (5,653.14 km) |
| Niagara Falls to Dingle | 3,400.04 mi (5,471.83 km) |
| Niagara Falls to Dinnington | 3,468.02 mi (5,581.24 km) |
| Niagara Falls to Dodworth | 3,451.28 mi (5,554.31 km) |
| Niagara Falls to Dollis Hill | 3,553.54 mi (5,718.86 km) |
| Niagara Falls to Doncaster | 3,466.56 mi (5,578.89 km) |
| Niagara Falls to Dorchester | 3,489.04 mi (5,615.07 km) |
| Niagara Falls to Dorking | 3,558.95 mi (5,727.57 km) |
| Niagara Falls to Dorridge | 3,472.17 mi (5,587.92 km) |
| Niagara Falls to Dover | 3,626.58 mi (5,836.42 km) |
| Niagara Falls to Downham Market | 3,549.38 mi (5,712.18 km) |
| Niagara Falls to Droitwich | 3,459.33 mi (5,567.26 km) |
| Niagara Falls to Dronfield | 3,459.44 mi (5,567.44 km) |
