| Kastamonu to Arcos de Valdevez | 2,157.62 mi (3,472.36 km) |
| Kastamonu to Arcozelo | 2,182.16 mi (3,511.84 km) |
| Kastamonu to Arganil | 2,167.99 mi (3,489.04 km) |
| Kastamonu to Arouca | 2,164.44 mi (3,483.32 km) |
| Kastamonu to Arruda dos Vinhos | 2,244.62 mi (3,612.36 km) |
| Kastamonu to Aveiro | 2,190.34 mi (3,525.02 km) |
| Kastamonu to Aver-o-Mar | 2,182.58 mi (3,512.53 km) |
| Kastamonu to Aves | 2,158.42 mi (3,473.64 km) |
| Kastamonu to Azambuja | 2,232.62 mi (3,593.06 km) |
| Kastamonu to Baiao | 2,149.68 mi (3,459.58 km) |
| Kastamonu to Barcelos | 2,173.02 mi (3,497.13 km) |
| Kastamonu to Barreiro | 2,251.53 mi (3,623.49 km) |
| Kastamonu to Batalha | 2,217.06 mi (3,568.01 km) |
| Kastamonu to Beja | 2,205.16 mi (3,548.86 km) |
| Kastamonu to Belas | 2,259.60 mi (3,636.48 km) |
