| Alpena to Cehegin | 4,064.69 mi (6,541.48 km) |
| Alpena to Cervello | 4,096.60 mi (6,592.84 km) |
| Alpena to Cervera | 4,056.76 mi (6,528.72 km) |
| Alpena to Ceuti | 4,088.59 mi (6,579.95 km) |
| Alpena to Cheste | 4,058.67 mi (6,531.79 km) |
| Alpena to Chiclana de la Frontera | 3,934.97 mi (6,332.72 km) |
| Alpena to Chipiona | 3,909.60 mi (6,291.90 km) |
| Alpena to Chiva | 4,057.45 mi (6,529.84 km) |
| Alpena to Churriana de la Vega | 4,019.41 mi (6,468.61 km) |
| Alpena to Ciempozuelos | 3,903.55 mi (6,282.16 km) |
| Alpena to Cieza | 4,075.68 mi (6,559.18 km) |
| Alpena to Cisterniga | 3,802.13 mi (6,118.93 km) |
| Alpena to Ciudad de Melilla | 4,126.48 mi (6,640.93 km) |
| Alpena to Ciudad Real | 3,935.54 mi (6,333.65 km) |
| Alpena to Ciudad-Rodrigo | 3,758.02 mi (6,047.95 km) |
