| Niles to Arcos de Valdevez | 3,919.97 mi (6,308.58 km) |
| Niles to Arcozelo | 3,936.81 mi (6,335.68 km) |
| Niles to Arganil | 3,992.25 mi (6,424.91 km) |
| Niles to Arouca | 3,958.85 mi (6,371.16 km) |
| Niles to Arruda dos Vinhos | 3,988.86 mi (6,419.45 km) |
| Niles to Aveiro | 3,950.76 mi (6,358.13 km) |
| Niles to Aver-o-Mar | 3,919.13 mi (6,307.23 km) |
| Niles to Aves | 3,939.08 mi (6,339.34 km) |
| Niles to Azambuja | 3,995.18 mi (6,429.62 km) |
| Niles to Baiao | 3,960.44 mi (6,373.72 km) |
| Niles to Barcelos | 3,922.20 mi (6,312.17 km) |
| Niles to Barreiro | 3,999.99 mi (6,437.36 km) |
| Niles to Batalha | 3,977.87 mi (6,401.76 km) |
| Niles to Beja | 4,077.50 mi (6,562.10 km) |
| Niles to Belas | 3,986.66 mi (6,415.91 km) |
