| Grayslake to Cehegin | 4,354.05 mi (7,007.17 km) |
| Grayslake to Cervello | 4,390.71 mi (7,066.17 km) |
| Grayslake to Cervera | 4,350.82 mi (7,001.96 km) |
| Grayslake to Ceuti | 4,378.26 mi (7,046.13 km) |
| Grayslake to Cheste | 4,350.08 mi (7,000.77 km) |
| Grayslake to Chiclana de la Frontera | 4,219.16 mi (6,790.08 km) |
| Grayslake to Chipiona | 4,194.03 mi (6,749.65 km) |
| Grayslake to Chiva | 4,348.84 mi (6,998.78 km) |
| Grayslake to Churriana de la Vega | 4,306.46 mi (6,930.57 km) |
| Grayslake to Ciempozuelos | 4,194.13 mi (6,749.81 km) |
| Grayslake to Cieza | 4,365.44 mi (7,025.49 km) |
| Grayslake to Cisterniga | 4,093.69 mi (6,588.16 km) |
| Grayslake to Ciudad de Melilla | 4,411.61 mi (7,099.80 km) |
| Grayslake to Ciudad Real | 4,224.65 mi (6,798.92 km) |
| Grayslake to Ciudad-Rodrigo | 4,047.51 mi (6,513.85 km) |
