| Sumter to Cadiz | 4,076.48 mi (6,560.46 km) |
| Sumter to Calafell | 4,348.22 mi (6,997.78 km) |
| Sumter to Calahorra | 4,150.80 mi (6,680.07 km) |
| Sumter to Calasparra | 4,266.71 mi (6,866.61 km) |
| Sumter to Calatayud | 4,190.02 mi (6,743.19 km) |
| Sumter to Caldas de Montbuy | 4,365.24 mi (7,025.18 km) |
| Sumter to Caldas de Reyes | 3,821.64 mi (6,150.33 km) |
| Sumter to Calella | 4,389.30 mi (7,063.89 km) |
| Sumter to Callosa de Segura | 4,310.68 mi (6,937.38 km) |
| Sumter to Calpe | 4,342.57 mi (6,988.70 km) |
| Sumter to Calvia | 4,438.17 mi (7,142.55 km) |
| Sumter to Camas | 4,068.37 mi (6,547.40 km) |
| Sumter to Cambados | 3,815.78 mi (6,140.90 km) |
| Sumter to Cambre | 3,823.12 mi (6,152.72 km) |
| Sumter to Cambrils | 4,327.12 mi (6,963.82 km) |
