| Os to Acqui Terme | 1,081.54 mi (1,740.58 km) |
| Os to Acri | 1,507.62 mi (2,426.28 km) |
| Os to Adelfia | 1,414.51 mi (2,276.44 km) |
| Os to Adrano | 1,611.87 mi (2,594.06 km) |
| Os to Adria | 1,082.96 mi (1,742.85 km) |
| Os to Afragola | 1,386.59 mi (2,231.50 km) |
| Os to Agliana | 1,151.25 mi (1,852.76 km) |
| Os to Agrate Brianza | 1,024.14 mi (1,648.19 km) |
| Os to Agrigento | 1,622.61 mi (2,611.34 km) |
| Os to Agropoli | 1,432.66 mi (2,305.64 km) |
| Os to Ala | 1,025.43 mi (1,650.27 km) |
| Os to Alassio | 1,126.74 mi (1,813.31 km) |
| Os to Alatri | 1,321.17 mi (2,126.21 km) |
| Os to Alba | 1,077.99 mi (1,734.86 km) |
| Os to Albano Laziale | 1,313.67 mi (2,114.15 km) |
