| Johnston to Cehegin | 4,629.84 mi (7,451.01 km) |
| Johnston to Cervello | 4,656.65 mi (7,494.16 km) |
| Johnston to Cervera | 4,616.94 mi (7,430.25 km) |
| Johnston to Ceuti | 4,653.58 mi (7,489.22 km) |
| Johnston to Cheste | 4,622.39 mi (7,439.02 km) |
| Johnston to Chiclana de la Frontera | 4,501.23 mi (7,244.03 km) |
| Johnston to Chipiona | 4,475.87 mi (7,203.22 km) |
| Johnston to Chiva | 4,621.20 mi (7,437.11 km) |
| Johnston to Churriana de la Vega | 4,585.41 mi (7,379.50 km) |
| Johnston to Ciempozuelos | 4,467.99 mi (7,190.54 km) |
| Johnston to Cieza | 4,640.62 mi (7,468.36 km) |
| Johnston to Cisterniga | 4,365.78 mi (7,026.05 km) |
| Johnston to Ciudad de Melilla | 4,692.73 mi (7,552.23 km) |
| Johnston to Ciudad Real | 4,500.85 mi (7,243.42 km) |
| Johnston to Ciudad-Rodrigo | 4,323.16 mi (6,957.46 km) |
