| Port Huron to Dillenburg | 4,044.29 mi (6,508.66 km) |
| Port Huron to Dillingen | 4,206.57 mi (6,769.83 km) |
| Port Huron to Dillingen | 4,034.30 mi (6,492.58 km) |
| Port Huron to Dingolfing | 4,281.23 mi (6,889.97 km) |
| Port Huron to Dinkelsbuhl | 4,181.95 mi (6,730.19 km) |
| Port Huron to Dinklage | 3,971.17 mi (6,390.99 km) |
| Port Huron to Dinslaken | 3,957.25 mi (6,368.57 km) |
| Port Huron to Dippoldiswalde | 4,236.63 mi (6,818.20 km) |
| Port Huron to Ditzingen | 4,143.19 mi (6,667.82 km) |
| Port Huron to Dobeln | 4,207.93 mi (6,772.01 km) |
| Port Huron to Doberlug-Kirchhain | 4,205.24 mi (6,767.67 km) |
| Port Huron to Donaueschingen | 4,153.71 mi (6,684.75 km) |
| Port Huron to Donauworth | 4,214.24 mi (6,782.16 km) |
| Port Huron to Donzdorf | 4,177.30 mi (6,722.71 km) |
| Port Huron to Dorfen | 4,282.26 mi (6,891.63 km) |
