| Helena to Dewsbury | 4,398.36 mi (7,078.47 km) |
| Helena to Deysbrook | 4,372.27 mi (7,036.49 km) |
| Helena to Didcot | 4,511.09 mi (7,259.90 km) |
| Helena to Dingle | 4,373.90 mi (7,039.11 km) |
| Helena to Dinnington | 4,426.73 mi (7,124.13 km) |
| Helena to Dodworth | 4,408.82 mi (7,095.31 km) |
| Helena to Dollis Hill | 4,543.56 mi (7,312.15 km) |
| Helena to Doncaster | 4,421.11 mi (7,115.09 km) |
| Helena to Dorchester | 4,517.68 mi (7,270.50 km) |
| Helena to Dorking | 4,557.02 mi (7,333.82 km) |
| Helena to Dorridge | 4,458.30 mi (7,174.94 km) |
| Helena to Dover | 4,611.36 mi (7,421.27 km) |
| Helena to Downham Market | 4,510.95 mi (7,259.67 km) |
| Helena to Droitwich | 4,451.36 mi (7,163.78 km) |
| Helena to Dronfield | 4,421.98 mi (7,116.49 km) |
