| San Marino to Arcos de Valdevez | 5,556.51 mi (8,942.33 km) |
| San Marino to Arcozelo | 5,580.96 mi (8,981.69 km) |
| San Marino to Arganil | 5,640.76 mi (9,077.93 km) |
| San Marino to Arouca | 5,602.37 mi (9,016.14 km) |
| San Marino to Arruda dos Vinhos | 5,650.75 mi (9,094.00 km) |
| San Marino to Aveiro | 5,598.39 mi (9,009.74 km) |
| San Marino to Aver-o-Mar | 5,560.92 mi (8,949.43 km) |
| San Marino to Aves | 5,578.60 mi (8,977.89 km) |
| San Marino to Azambuja | 5,655.70 mi (9,101.97 km) |
| San Marino to Baiao | 5,601.13 mi (9,014.15 km) |
| San Marino to Barcelos | 5,562.40 mi (8,951.82 km) |
| San Marino to Barreiro | 5,664.15 mi (9,115.57 km) |
| San Marino to Batalha | 5,633.79 mi (9,066.70 km) |
| San Marino to Beja | 5,741.61 mi (9,240.22 km) |
| San Marino to Belas | 5,650.82 mi (9,094.11 km) |
