| Horn Lake to Arcos de Valdevez | 4,276.68 mi (6,882.65 km) |
| Horn Lake to Arcozelo | 4,287.82 mi (6,900.58 km) |
| Horn Lake to Arganil | 4,339.26 mi (6,983.36 km) |
| Horn Lake to Arouca | 4,310.05 mi (6,936.35 km) |
| Horn Lake to Arruda dos Vinhos | 4,325.04 mi (6,960.47 km) |
| Horn Lake to Aveiro | 4,298.98 mi (6,918.53 km) |
| Horn Lake to Aver-o-Mar | 4,272.11 mi (6,875.29 km) |
| Horn Lake to Aves | 4,293.43 mi (6,909.61 km) |
| Horn Lake to Azambuja | 4,332.45 mi (6,972.41 km) |
| Horn Lake to Baiao | 4,313.67 mi (6,942.18 km) |
| Horn Lake to Barcelos | 4,276.28 mi (6,882.01 km) |
| Horn Lake to Barreiro | 4,334.04 mi (6,974.97 km) |
| Horn Lake to Batalha | 4,319.20 mi (6,951.08 km) |
| Horn Lake to Beja | 4,410.61 mi (7,098.19 km) |
| Horn Lake to Belas | 4,320.88 mi (6,953.79 km) |
