| Union City to Cadiz | 5,873.58 mi (9,452.61 km) |
| Union City to Calafell | 5,932.48 mi (9,547.41 km) |
| Union City to Calahorra | 5,753.28 mi (9,259.00 km) |
| Union City to Calasparra | 5,967.06 mi (9,603.06 km) |
| Union City to Calatayud | 5,812.69 mi (9,354.61 km) |
| Union City to Caldas de Montbuy | 5,930.46 mi (9,544.16 km) |
| Union City to Caldas de Reyes | 5,495.33 mi (8,843.88 km) |
| Union City to Calella | 5,948.10 mi (9,572.54 km) |
| Union City to Callosa de Segura | 6,002.92 mi (9,660.76 km) |
| Union City to Calpe | 6,010.12 mi (9,672.35 km) |
| Union City to Calvia | 6,049.99 mi (9,736.51 km) |
| Union City to Camas | 5,842.20 mi (9,402.11 km) |
| Union City to Cambados | 5,494.02 mi (8,841.77 km) |
| Union City to Cambre | 5,475.08 mi (8,811.29 km) |
| Union City to Cambrils | 5,921.66 mi (9,529.99 km) |
