| Welwyn Garden City to Buhusi | 1,254.71 mi (2,019.25 km) |
| Welwyn Garden City to Bumbesti-Jiu | 1,165.94 mi (1,876.40 km) |
| Welwyn Garden City to Busteni | 1,247.74 mi (2,008.04 km) |
| Welwyn Garden City to Buzau | 1,310.68 mi (2,109.33 km) |
| Welwyn Garden City to Cajvana | 1,194.70 mi (1,922.68 km) |
| Welwyn Garden City to Calafat | 1,193.80 mi (1,921.24 km) |
| Welwyn Garden City to Calan | 1,130.67 mi (1,819.64 km) |
| Welwyn Garden City to Calarasi | 1,366.41 mi (2,199.03 km) |
| Welwyn Garden City to Campia Turzii | 1,140.22 mi (1,835.00 km) |
| Welwyn Garden City to Campina | 1,266.08 mi (2,037.56 km) |
| Welwyn Garden City to Campulung | 1,232.17 mi (1,982.98 km) |
| Welwyn Garden City to Campulung Moldovenesc | 1,181.71 mi (1,901.78 km) |
| Welwyn Garden City to Caracal | 1,245.73 mi (2,004.81 km) |
| Welwyn Garden City to Caransebes | 1,109.14 mi (1,784.99 km) |
| Welwyn Garden City to Carei | 1,046.24 mi (1,683.75 km) |
