| Willoughby to Arcos de Valdevez | 3,640.26 mi (5,858.43 km) |
| Willoughby to Arcozelo | 3,654.21 mi (5,880.88 km) |
| Willoughby to Arganil | 3,707.76 mi (5,967.06 km) |
| Willoughby to Arouca | 3,676.37 mi (5,916.55 km) |
| Willoughby to Arruda dos Vinhos | 3,699.31 mi (5,953.47 km) |
| Willoughby to Aveiro | 3,666.79 mi (5,901.13 km) |
| Willoughby to Aver-o-Mar | 3,637.49 mi (5,853.98 km) |
| Willoughby to Aves | 3,658.18 mi (5,887.26 km) |
| Willoughby to Azambuja | 3,706.13 mi (5,964.45 km) |
| Willoughby to Baiao | 3,678.99 mi (5,920.77 km) |
| Willoughby to Barcelos | 3,641.13 mi (5,859.83 km) |
| Willoughby to Barreiro | 3,709.52 mi (5,969.89 km) |
| Willoughby to Batalha | 3,690.66 mi (5,939.54 km) |
| Willoughby to Beja | 3,786.73 mi (6,094.15 km) |
| Willoughby to Belas | 3,696.24 mi (5,948.53 km) |
