| Welwyn Garden City to Castrovillari | 1,139.22 mi (1,833.40 km) |
| Welwyn Garden City to Catania | 1,236.18 mi (1,989.45 km) |
| Welwyn Garden City to Catanzaro | 1,202.55 mi (1,935.32 km) |
| Welwyn Garden City to Cattolica | 805.40 mi (1,296.16 km) |
| Welwyn Garden City to Cava de' Tirreni | 1,042.53 mi (1,677.78 km) |
| Welwyn Garden City to Cavallino | 1,180.38 mi (1,899.63 km) |
| Welwyn Garden City to Cavarzere | 725.33 mi (1,167.31 km) |
| Welwyn Garden City to Cave | 925.46 mi (1,489.39 km) |
| Welwyn Garden City to Cavriago | 694.77 mi (1,118.12 km) |
| Welwyn Garden City to Cavriglia | 787.62 mi (1,267.56 km) |
| Welwyn Garden City to Cazzago San Martino | 633.09 mi (1,018.86 km) |
| Welwyn Garden City to Ceccano | 951.71 mi (1,531.63 km) |
| Welwyn Garden City to Cecina | 768.71 mi (1,237.11 km) |
| Welwyn Garden City to Cefalu | 1,174.03 mi (1,889.43 km) |
| Welwyn Garden City to Ceglie Messapico | 1,138.74 mi (1,832.63 km) |
