| Billings to Cadiz | 4,979.86 mi (8,014.31 km) |
| Billings to Calafell | 5,046.81 mi (8,122.06 km) |
| Billings to Calahorra | 4,865.31 mi (7,829.96 km) |
| Billings to Calasparra | 5,075.27 mi (8,167.85 km) |
| Billings to Calatayud | 4,923.87 mi (7,924.21 km) |
| Billings to Caldas de Montbuy | 5,046.17 mi (8,121.03 km) |
| Billings to Caldas de Reyes | 4,603.01 mi (7,407.82 km) |
| Billings to Calella | 5,064.43 mi (8,150.41 km) |
| Billings to Callosa de Segura | 5,111.55 mi (8,226.25 km) |
| Billings to Calpe | 5,119.88 mi (8,239.66 km) |
| Billings to Calvia | 5,163.17 mi (8,309.32 km) |
| Billings to Camas | 4,948.55 mi (7,963.92 km) |
| Billings to Cambados | 4,601.55 mi (7,405.49 km) |
| Billings to Cambre | 4,583.42 mi (7,376.30 km) |
| Billings to Cambrils | 5,035.21 mi (8,103.39 km) |
