| Port Huron to Civril | 5,397.62 mi (8,686.64 km) |
| Port Huron to Cizre | 5,889.76 mi (9,478.65 km) |
| Port Huron to Cobanlar | 5,416.52 mi (8,717.05 km) |
| Port Huron to Corlu | 5,185.09 mi (8,344.59 km) |
| Port Huron to Corum | 5,472.15 mi (8,806.57 km) |
| Port Huron to Cukurca | 5,941.38 mi (9,561.72 km) |
| Port Huron to Cukurcayir | 5,610.92 mi (9,029.91 km) |
| Port Huron to Cumayeri | 5,313.71 mi (8,551.59 km) |
| Port Huron to Cumra | 5,547.15 mi (8,927.27 km) |
| Port Huron to Cungus | 5,744.32 mi (9,244.59 km) |
| Port Huron to Dargecit | 5,862.58 mi (9,434.91 km) |
| Port Huron to Davutlar | 5,332.86 mi (8,582.40 km) |
| Port Huron to Demirozu | 5,659.43 mi (9,107.97 km) |
| Port Huron to Demre | 5,509.65 mi (8,866.93 km) |
| Port Huron to Denizciler | 5,720.24 mi (9,205.83 km) |
