| Springboro to Arcos de Valdevez | 3,838.40 mi (6,177.31 km) |
| Springboro to Arcozelo | 3,851.33 mi (6,198.12 km) |
| Springboro to Arganil | 3,904.13 mi (6,283.09 km) |
| Springboro to Arouca | 3,873.52 mi (6,233.83 km) |
| Springboro to Arruda dos Vinhos | 3,893.60 mi (6,266.14 km) |
| Springboro to Aveiro | 3,863.40 mi (6,217.54 km) |
| Springboro to Aver-o-Mar | 3,834.98 mi (6,171.80 km) |
| Springboro to Aves | 3,855.90 mi (6,205.47 km) |
| Springboro to Azambuja | 3,900.64 mi (6,277.47 km) |
| Springboro to Baiao | 3,876.51 mi (6,238.64 km) |
| Springboro to Barcelos | 3,838.81 mi (6,177.97 km) |
| Springboro to Barreiro | 3,903.38 mi (6,281.88 km) |
| Springboro to Batalha | 3,885.95 mi (6,253.84 km) |
| Springboro to Beja | 3,980.39 mi (6,405.81 km) |
| Springboro to Belas | 3,890.14 mi (6,260.57 km) |
