| Sumner to Arcos de Valdevez | 5,072.82 mi (8,163.91 km) |
| Sumner to Arcozelo | 5,107.07 mi (8,219.03 km) |
| Sumner to Arganil | 5,171.09 mi (8,322.06 km) |
| Sumner to Arouca | 5,126.78 mi (8,250.76 km) |
| Sumner to Arruda dos Vinhos | 5,201.66 mi (8,371.26 km) |
| Sumner to Aveiro | 5,128.95 mi (8,254.24 km) |
| Sumner to Aver-o-Mar | 5,084.38 mi (8,182.52 km) |
| Sumner to Aves | 5,098.23 mi (8,204.80 km) |
| Sumner to Azambuja | 5,204.18 mi (8,375.32 km) |
| Sumner to Baiao | 5,121.58 mi (8,242.39 km) |
| Sumner to Barcelos | 5,083.57 mi (8,181.22 km) |
| Sumner to Barreiro | 5,218.37 mi (8,398.16 km) |
| Sumner to Batalha | 5,175.68 mi (8,329.45 km) |
| Sumner to Beja | 5,293.05 mi (8,518.34 km) |
| Sumner to Belas | 5,205.50 mi (8,377.45 km) |
