| Willoughby to Deventer | 3,936.98 mi (6,335.96 km) |
| Willoughby to Diemen | 3,889.72 mi (6,259.89 km) |
| Willoughby to Doesburg | 3,943.70 mi (6,346.78 km) |
| Willoughby to Doetinchem | 3,951.59 mi (6,359.47 km) |
| Willoughby to Dokkum | 3,897.86 mi (6,273.00 km) |
| Willoughby to Dongen | 3,910.03 mi (6,292.58 km) |
| Willoughby to Doorn | 3,913.50 mi (6,298.17 km) |
| Willoughby to Dordrecht | 3,895.24 mi (6,268.79 km) |
| Willoughby to Drachten | 3,908.62 mi (6,290.31 km) |
| Willoughby to Drimmelen | 3,903.37 mi (6,281.87 km) |
| Willoughby to Dronten | 3,912.35 mi (6,296.32 km) |
| Willoughby to Druten | 3,927.68 mi (6,320.98 km) |
| Willoughby to Duiven | 3,942.02 mi (6,344.07 km) |
| Willoughby to Echt | 3,963.30 mi (6,378.32 km) |
| Willoughby to Edam | 3,887.25 mi (6,255.93 km) |
