| Signal Hill to Alenquer | 5,667.20 mi (9,120.47 km) |
| Signal Hill to Alfena | 5,595.56 mi (9,005.18 km) |
| Signal Hill to Alijo | 5,637.00 mi (9,071.87 km) |
| Signal Hill to Aljustrel | 5,751.55 mi (9,256.23 km) |
| Signal Hill to Almada | 5,676.72 mi (9,135.80 km) |
| Signal Hill to Almargem | 5,664.86 mi (9,116.71 km) |
| Signal Hill to Almeirim | 5,677.83 mi (9,137.59 km) |
| Signal Hill to Amadora | 5,671.29 mi (9,127.05 km) |
| Signal Hill to Amarante | 5,613.19 mi (9,033.56 km) |
| Signal Hill to Amares | 5,587.47 mi (8,992.16 km) |
| Signal Hill to Amora | 5,680.67 mi (9,142.16 km) |
| Signal Hill to Anadia | 5,633.35 mi (9,066.00 km) |
| Signal Hill to Angra do Heroismo | 4,858.83 mi (7,819.53 km) |
| Signal Hill to Ansiao | 5,655.21 mi (9,101.18 km) |
| Signal Hill to Anta | 5,601.17 mi (9,014.22 km) |
