| San Luis Obispo to Arcos de Valdevez | 5,602.71 mi (9,016.69 km) |
| San Luis Obispo to Arcozelo | 5,629.18 mi (9,059.29 km) |
| San Luis Obispo to Arganil | 5,690.01 mi (9,157.19 km) |
| San Luis Obispo to Arouca | 5,650.33 mi (9,093.32 km) |
| San Luis Obispo to Arruda dos Vinhos | 5,704.02 mi (9,179.73 km) |
| San Luis Obispo to Aveiro | 5,647.55 mi (9,088.85 km) |
| San Luis Obispo to Aver-o-Mar | 5,608.55 mi (9,026.09 km) |
| San Luis Obispo to Aves | 5,625.54 mi (9,053.43 km) |
| San Luis Obispo to Azambuja | 5,708.52 mi (9,186.97 km) |
| San Luis Obispo to Baiao | 5,648.31 mi (9,090.08 km) |
| San Luis Obispo to Barcelos | 5,609.59 mi (9,027.76 km) |
| San Luis Obispo to Barreiro | 5,718.09 mi (9,202.38 km) |
| San Luis Obispo to Batalha | 5,685.26 mi (9,149.55 km) |
| San Luis Obispo to Beja | 5,795.28 mi (9,326.61 km) |
| San Luis Obispo to Belas | 5,704.81 mi (9,181.00 km) |
