| Key Biscayne to Carmona | 4,350.78 mi (7,001.90 km) |
| Key Biscayne to Cartagena | 4,595.80 mi (7,396.23 km) |
| Key Biscayne to Cartama | 4,416.55 mi (7,107.75 km) |
| Key Biscayne to Cartaya | 4,272.21 mi (6,875.46 km) |
| Key Biscayne to Caspe | 4,581.17 mi (7,372.68 km) |
| Key Biscayne to Cassa de la Selva | 4,714.79 mi (7,587.72 km) |
| Key Biscayne to Castalla | 4,594.24 mi (7,393.72 km) |
| Key Biscayne to Castellbisbal | 4,678.00 mi (7,528.52 km) |
| Key Biscayne to Castelldefels | 4,681.31 mi (7,533.84 km) |
| Key Biscayne to Castello de Ampurias | 4,717.85 mi (7,592.64 km) |
| Key Biscayne to Castellon de la Plana | 4,602.72 mi (7,407.35 km) |
| Key Biscayne to Castilleja de la Cuesta | 4,329.75 mi (6,968.06 km) |
| Key Biscayne to Catarroja | 4,593.81 mi (7,393.02 km) |
| Key Biscayne to Catral | 4,595.04 mi (7,395.00 km) |
| Key Biscayne to Caudete | 4,575.79 mi (7,364.02 km) |
