| Welwyn Garden City to Trezzo sull'Adda | 615.05 mi (989.82 km) |
| Welwyn Garden City to Tricase | 1,206.09 mi (1,941.01 km) |
| Welwyn Garden City to Trieste | 763.46 mi (1,228.67 km) |
| Welwyn Garden City to Triggiano | 1,096.98 mi (1,765.41 km) |
| Welwyn Garden City to Trinitapoli | 1,054.20 mi (1,696.57 km) |
| Welwyn Garden City to Trissino | 679.72 mi (1,093.90 km) |
| Welwyn Garden City to Triuggio | 603.87 mi (971.84 km) |
| Welwyn Garden City to Trofarello | 594.65 mi (956.99 km) |
| Welwyn Garden City to Troina | 1,205.39 mi (1,939.88 km) |
| Welwyn Garden City to Turin | 587.61 mi (945.67 km) |
| Welwyn Garden City to Udine | 725.34 mi (1,167.31 km) |
| Welwyn Garden City to Ugento | 1,199.15 mi (1,929.85 km) |
| Welwyn Garden City to Umbertide | 826.44 mi (1,330.03 km) |
| Welwyn Garden City to Urbino | 814.41 mi (1,310.66 km) |
| Welwyn Garden City to Urgnano | 621.37 mi (999.99 km) |
