| Holbrook to Arcos de Valdevez | 3,272.63 mi (5,266.79 km) |
| Holbrook to Arcozelo | 3,282.39 mi (5,282.49 km) |
| Holbrook to Arganil | 3,332.98 mi (5,363.91 km) |
| Holbrook to Arouca | 3,304.62 mi (5,318.27 km) |
| Holbrook to Arruda dos Vinhos | 3,317.39 mi (5,338.82 km) |
| Holbrook to Aveiro | 3,292.96 mi (5,299.51 km) |
| Holbrook to Aver-o-Mar | 3,267.14 mi (5,257.95 km) |
| Holbrook to Aves | 3,288.75 mi (5,292.74 km) |
| Holbrook to Azambuja | 3,324.89 mi (5,350.90 km) |
| Holbrook to Baiao | 3,308.69 mi (5,324.82 km) |
| Holbrook to Barcelos | 3,271.57 mi (5,265.08 km) |
| Holbrook to Barreiro | 3,326.23 mi (5,353.06 km) |
| Holbrook to Batalha | 3,312.09 mi (5,330.29 km) |
| Holbrook to Beja | 3,402.72 mi (5,476.14 km) |
| Holbrook to Belas | 3,313.09 mi (5,331.91 km) |
