| Fort Collins to Dillenburg | 4,959.43 mi (7,981.44 km) |
| Fort Collins to Dillingen | 5,133.43 mi (8,261.46 km) |
| Fort Collins to Dillingen | 4,973.13 mi (8,003.48 km) |
| Fort Collins to Dingolfing | 5,195.62 mi (8,361.54 km) |
| Fort Collins to Dinkelsbuhl | 5,104.24 mi (8,214.49 km) |
| Fort Collins to Dinklage | 4,864.53 mi (7,828.71 km) |
| Fort Collins to Dinslaken | 4,870.99 mi (7,839.10 km) |
| Fort Collins to Dippoldiswalde | 5,119.49 mi (8,239.02 km) |
| Fort Collins to Ditzingen | 5,075.11 mi (8,167.60 km) |
| Fort Collins to Dobeln | 5,091.52 mi (8,194.00 km) |
| Fort Collins to Doberlug-Kirchhain | 5,080.51 mi (8,176.29 km) |
| Fort Collins to Donaueschingen | 5,097.98 mi (8,204.41 km) |
| Fort Collins to Donauworth | 5,137.78 mi (8,268.46 km) |
| Fort Collins to Donzdorf | 5,106.58 mi (8,218.24 km) |
| Fort Collins to Dorfen | 5,202.58 mi (8,372.74 km) |
