| Seabrook to Carmona | 3,762.60 mi (6,055.31 km) |
| Seabrook to Cartagena | 3,987.47 mi (6,417.21 km) |
| Seabrook to Cartama | 3,835.01 mi (6,171.85 km) |
| Seabrook to Cartaya | 3,692.50 mi (5,942.50 km) |
| Seabrook to Caspe | 3,922.66 mi (6,312.92 km) |
| Seabrook to Cassa de la Selva | 4,038.50 mi (6,499.33 km) |
| Seabrook to Castalla | 3,971.65 mi (6,391.75 km) |
| Seabrook to Castellbisbal | 4,009.68 mi (6,452.95 km) |
| Seabrook to Castelldefels | 4,015.39 mi (6,462.14 km) |
| Seabrook to Castello de Ampurias | 4,036.52 mi (6,496.15 km) |
| Seabrook to Castellon de la Plana | 3,959.96 mi (6,372.93 km) |
| Seabrook to Castilleja de la Cuesta | 3,744.36 mi (6,025.96 km) |
| Seabrook to Catarroja | 3,959.81 mi (6,372.70 km) |
| Seabrook to Catral | 3,978.66 mi (6,403.04 km) |
| Seabrook to Caudete | 3,953.01 mi (6,361.75 km) |
