| Port Huron to Coswig | 4,154.58 mi (6,686.15 km) |
| Port Huron to Cottbus | 4,227.03 mi (6,802.74 km) |
| Port Huron to Crailsheim | 4,170.10 mi (6,711.12 km) |
| Port Huron to Cremlingen | 4,077.17 mi (6,561.57 km) |
| Port Huron to Crimmitschau | 4,193.05 mi (6,748.07 km) |
| Port Huron to Cuxhaven | 3,950.49 mi (6,357.70 km) |
| Port Huron to Dachau | 4,255.25 mi (6,848.16 km) |
| Port Huron to Dallgow-Doberitz | 4,152.19 mi (6,682.30 km) |
| Port Huron to Damme | 3,978.57 mi (6,402.89 km) |
| Port Huron to Darmstadt | 4,089.12 mi (6,580.80 km) |
| Port Huron to Dassel | 4,058.22 mi (6,531.08 km) |
| Port Huron to Datteln | 3,976.92 mi (6,400.23 km) |
| Port Huron to Dautphe | 4,049.83 mi (6,517.57 km) |
| Port Huron to Deggendorf | 4,290.96 mi (6,905.63 km) |
| Port Huron to Delbruck | 4,018.31 mi (6,466.84 km) |
