| Cave Spring to Arcos de Valdevez | 3,715.61 mi (5,979.70 km) |
| Cave Spring to Arcozelo | 3,724.29 mi (5,993.67 km) |
| Cave Spring to Arganil | 3,773.97 mi (6,073.62 km) |
| Cave Spring to Arouca | 3,746.52 mi (6,029.44 km) |
| Cave Spring to Arruda dos Vinhos | 3,755.90 mi (6,044.54 km) |
| Cave Spring to Aveiro | 3,734.28 mi (6,009.75 km) |
| Cave Spring to Aver-o-Mar | 3,709.45 mi (5,969.78 km) |
| Cave Spring to Aves | 3,731.28 mi (6,004.92 km) |
| Cave Spring to Azambuja | 3,763.67 mi (6,057.04 km) |
| Cave Spring to Baiao | 3,750.98 mi (6,036.62 km) |
| Cave Spring to Barcelos | 3,714.08 mi (5,977.23 km) |
| Cave Spring to Barreiro | 3,764.19 mi (6,057.89 km) |
| Cave Spring to Batalha | 3,751.86 mi (6,038.04 km) |
| Cave Spring to Beja | 3,840.27 mi (6,180.32 km) |
| Cave Spring to Belas | 3,751.13 mi (6,036.85 km) |
