| Horndean to Amelia | 856.32 mi (1,378.11 km) |
| Horndean to Anagni | 923.15 mi (1,485.67 km) |
| Horndean to Ancona | 844.41 mi (1,358.95 km) |
| Horndean to Andria | 1,061.48 mi (1,708.29 km) |
| Horndean to Angri | 1,023.87 mi (1,647.75 km) |
| Horndean to Anguillara Sabazia | 875.10 mi (1,408.34 km) |
| Horndean to Anzio | 920.58 mi (1,481.52 km) |
| Horndean to Anzola dell'Emilia | 715.77 mi (1,151.92 km) |
| Horndean to Aosta | 522.82 mi (841.40 km) |
| Horndean to Apricena | 1,002.88 mi (1,613.98 km) |
| Horndean to Aprilia | 914.13 mi (1,471.16 km) |
| Horndean to Aradeo | 1,182.29 mi (1,902.72 km) |
| Horndean to Aragona | 1,177.12 mi (1,894.39 km) |
| Horndean to Arco | 643.80 mi (1,036.10 km) |
| Horndean to Arcola | 690.85 mi (1,111.81 km) |
