| Fort Collins to Deventer | 4,821.16 mi (7,758.91 km) |
| Fort Collins to Diemen | 4,779.45 mi (7,691.77 km) |
| Fort Collins to Doesburg | 4,831.21 mi (7,775.08 km) |
| Fort Collins to Doetinchem | 4,838.82 mi (7,787.33 km) |
| Fort Collins to Dokkum | 4,767.76 mi (7,672.96 km) |
| Fort Collins to Dongen | 4,809.64 mi (7,740.36 km) |
| Fort Collins to Doorn | 4,805.24 mi (7,733.29 km) |
| Fort Collins to Dordrecht | 4,794.05 mi (7,715.28 km) |
| Fort Collins to Drachten | 4,781.17 mi (7,694.54 km) |
| Fort Collins to Drimmelen | 4,803.05 mi (7,729.76 km) |
| Fort Collins to Dronten | 4,795.29 mi (7,717.27 km) |
| Fort Collins to Druten | 4,820.07 mi (7,757.15 km) |
| Fort Collins to Duiven | 4,831.02 mi (7,774.78 km) |
| Fort Collins to Echt | 4,864.73 mi (7,829.03 km) |
| Fort Collins to Edam | 4,773.95 mi (7,682.93 km) |
