| Walnut Creek to Arcos de Valdevez | 5,524.77 mi (8,891.26 km) |
| Walnut Creek to Arcozelo | 5,553.50 mi (8,937.49 km) |
| Walnut Creek to Arganil | 5,615.40 mi (9,037.11 km) |
| Walnut Creek to Arouca | 5,574.30 mi (8,970.97 km) |
| Walnut Creek to Arruda dos Vinhos | 5,634.06 mi (9,067.15 km) |
| Walnut Creek to Aveiro | 5,572.90 mi (8,968.72 km) |
| Walnut Creek to Aver-o-Mar | 5,532.23 mi (8,903.27 km) |
| Walnut Creek to Aves | 5,548.38 mi (8,929.26 km) |
| Walnut Creek to Azambuja | 5,638.03 mi (9,073.53 km) |
| Walnut Creek to Baiao | 5,571.39 mi (8,966.28 km) |
| Walnut Creek to Barcelos | 5,532.75 mi (8,904.11 km) |
| Walnut Creek to Barreiro | 5,648.91 mi (9,091.05 km) |
| Walnut Creek to Batalha | 5,613.25 mi (9,033.65 km) |
| Walnut Creek to Beja | 5,725.63 mi (9,214.51 km) |
| Walnut Creek to Belas | 5,635.70 mi (9,069.79 km) |
