| Onex to Amelia | 400.24 mi (644.12 km) |
| Onex to Anagni | 465.91 mi (749.80 km) |
| Onex to Ancona | 403.76 mi (649.79 km) |
| Onex to Andria | 613.53 mi (987.39 km) |
| Onex to Angri | 566.97 mi (912.44 km) |
| Onex to Anguillara Sabazia | 416.62 mi (670.48 km) |
| Onex to Anzio | 461.23 mi (742.28 km) |
| Onex to Anzola dell'Emilia | 271.90 mi (437.58 km) |
| Onex to Aosta | 66.20 mi (106.53 km) |
| Onex to Apricena | 554.84 mi (892.94 km) |
| Onex to Aprilia | 455.13 mi (732.46 km) |
| Onex to Aradeo | 735.32 mi (1,183.38 km) |
| Onex to Aragona | 719.05 mi (1,157.20 km) |
| Onex to Arco | 230.08 mi (370.27 km) |
| Onex to Arcola | 233.78 mi (376.24 km) |
