| San Marcos to Arcos de Valdevez | 5,565.81 mi (8,957.30 km) |
| San Marcos to Arcozelo | 5,589.14 mi (8,994.85 km) |
| San Marcos to Arganil | 5,648.34 mi (9,090.12 km) |
| San Marcos to Arouca | 5,610.68 mi (9,029.51 km) |
| San Marcos to Arruda dos Vinhos | 5,656.10 mi (9,102.61 km) |
| San Marcos to Aveiro | 5,606.05 mi (9,022.07 km) |
| San Marcos to Aver-o-Mar | 5,569.44 mi (8,963.14 km) |
| San Marcos to Aves | 5,587.49 mi (8,992.19 km) |
| San Marcos to Azambuja | 5,661.29 mi (9,110.97 km) |
| San Marcos to Baiao | 5,609.87 mi (9,028.22 km) |
| San Marcos to Barcelos | 5,571.16 mi (8,965.91 km) |
| San Marcos to Barreiro | 5,669.11 mi (9,123.55 km) |
| San Marcos to Batalha | 5,640.14 mi (9,076.93 km) |
| San Marcos to Beja | 5,746.66 mi (9,248.36 km) |
| San Marcos to Belas | 5,655.76 mi (9,102.07 km) |
