| Alliance to Cadiz | 3,918.41 mi (6,306.08 km) |
| Alliance to Calafell | 4,128.50 mi (6,644.19 km) |
| Alliance to Calahorra | 3,932.17 mi (6,328.22 km) |
| Alliance to Calasparra | 4,080.06 mi (6,566.22 km) |
| Alliance to Calatayud | 3,978.13 mi (6,402.18 km) |
| Alliance to Caldas de Montbuy | 4,140.53 mi (6,663.54 km) |
| Alliance to Caldas de Reyes | 3,617.47 mi (5,821.75 km) |
| Alliance to Calella | 4,163.30 mi (6,700.19 km) |
| Alliance to Callosa de Segura | 4,122.33 mi (6,634.25 km) |
| Alliance to Calpe | 4,147.22 mi (6,674.31 km) |
| Alliance to Calvia | 4,228.18 mi (6,804.59 km) |
| Alliance to Camas | 3,902.09 mi (6,279.80 km) |
| Alliance to Cambados | 3,612.92 mi (5,814.43 km) |
| Alliance to Cambre | 3,612.20 mi (5,813.27 km) |
| Alliance to Cambrils | 4,109.90 mi (6,614.24 km) |
