| Sumner to Alenquer | 5,199.87 mi (8,368.39 km) |
| Sumner to Alfena | 5,101.30 mi (8,209.75 km) |
| Sumner to Alijo | 5,134.43 mi (8,263.06 km) |
| Sumner to Aljustrel | 5,289.43 mi (8,512.52 km) |
| Sumner to Almada | 5,214.47 mi (8,391.87 km) |
| Sumner to Almargem | 5,201.71 mi (8,371.35 km) |
| Sumner to Almeirim | 5,205.76 mi (8,377.86 km) |
| Sumner to Amadora | 5,209.06 mi (8,383.17 km) |
| Sumner to Amarante | 5,115.18 mi (8,232.09 km) |
| Sumner to Amares | 5,087.80 mi (8,188.02 km) |
| Sumner to Amora | 5,218.68 mi (8,398.65 km) |
| Sumner to Anadia | 5,146.85 mi (8,283.05 km) |
| Sumner to Angra do Heroismo | 4,537.06 mi (7,301.69 km) |
| Sumner to Ansiao | 5,174.14 mi (8,326.98 km) |
| Sumner to Anta | 5,110.09 mi (8,223.90 km) |
