| Willoughby to Dillenburg | 4,067.32 mi (6,545.72 km) |
| Willoughby to Dillingen | 4,227.25 mi (6,803.11 km) |
| Willoughby to Dillingen | 4,053.72 mi (6,523.83 km) |
| Willoughby to Dingolfing | 4,303.53 mi (6,925.87 km) |
| Willoughby to Dinkelsbuhl | 4,203.41 mi (6,764.73 km) |
| Willoughby to Dinklage | 3,997.68 mi (6,433.64 km) |
| Willoughby to Dinslaken | 3,980.81 mi (6,406.49 km) |
| Willoughby to Dippoldiswalde | 4,263.65 mi (6,861.68 km) |
| Willoughby to Ditzingen | 4,163.31 mi (6,700.20 km) |
| Willoughby to Dobeln | 4,234.95 mi (6,815.49 km) |
| Willoughby to Doberlug-Kirchhain | 4,233.42 mi (6,813.04 km) |
| Willoughby to Donaueschingen | 4,171.85 mi (6,713.95 km) |
| Willoughby to Donauworth | 4,235.40 mi (6,816.21 km) |
| Willoughby to Donzdorf | 4,197.71 mi (6,755.56 km) |
| Willoughby to Dorfen | 4,303.67 mi (6,926.10 km) |
