| Welwyn Garden City to Amelia | 869.22 mi (1,398.87 km) |
| Welwyn Garden City to Anagni | 936.59 mi (1,507.30 km) |
| Welwyn Garden City to Ancona | 849.79 mi (1,367.61 km) |
| Welwyn Garden City to Andria | 1,067.97 mi (1,718.73 km) |
| Welwyn Garden City to Angri | 1,036.45 mi (1,668.00 km) |
| Welwyn Garden City to Anguillara Sabazia | 890.12 mi (1,432.52 km) |
| Welwyn Garden City to Anzio | 936.58 mi (1,507.28 km) |
| Welwyn Garden City to Anzola dell'Emilia | 724.32 mi (1,165.68 km) |
| Welwyn Garden City to Aosta | 540.73 mi (870.22 km) |
| Welwyn Garden City to Apricena | 1,009.82 mi (1,625.15 km) |
| Welwyn Garden City to Aprilia | 929.63 mi (1,496.10 km) |
| Welwyn Garden City to Aradeo | 1,187.56 mi (1,911.19 km) |
| Welwyn Garden City to Aragona | 1,200.61 mi (1,932.19 km) |
| Welwyn Garden City to Arco | 646.17 mi (1,039.91 km) |
| Welwyn Garden City to Arcola | 706.04 mi (1,136.27 km) |
