| Ermua to Arcos de Valdevez | 315.20 mi (507.27 km) |
| Ermua to Arcozelo | 347.26 mi (558.86 km) |
| Ermua to Arganil | 352.23 mi (566.86 km) |
| Ermua to Arouca | 333.17 mi (536.18 km) |
| Ermua to Arruda dos Vinhos | 448.41 mi (721.65 km) |
| Ermua to Aveiro | 361.96 mi (582.52 km) |
| Ermua to Aver-o-Mar | 343.13 mi (552.21 km) |
| Ermua to Aves | 319.86 mi (514.77 km) |
| Ermua to Azambuja | 436.61 mi (702.66 km) |
| Ermua to Baiao | 315.73 mi (508.12 km) |
| Ermua to Barcelos | 332.84 mi (535.65 km) |
| Ermua to Barreiro | 463.46 mi (745.87 km) |
| Ermua to Batalha | 407.56 mi (655.90 km) |
| Ermua to Beja | 454.24 mi (731.03 km) |
| Ermua to Belas | 466.25 mi (750.36 km) |
