| Portage to Alenquer | 3,880.81 mi (6,245.56 km) |
| Portage to Alfena | 3,829.49 mi (6,162.97 km) |
| Portage to Alijo | 3,875.96 mi (6,237.76 km) |
| Portage to Aljustrel | 3,960.02 mi (6,373.04 km) |
| Portage to Almada | 3,886.95 mi (6,255.44 km) |
| Portage to Almargem | 3,875.91 mi (6,237.67 km) |
| Portage to Almeirim | 3,894.24 mi (6,267.18 km) |
| Portage to Amadora | 3,881.62 mi (6,246.86 km) |
| Portage to Amarante | 3,849.41 mi (6,195.03 km) |
| Portage to Amares | 3,825.67 mi (6,156.83 km) |
| Portage to Amora | 3,890.65 mi (6,261.40 km) |
| Portage to Anadia | 3,860.65 mi (6,213.12 km) |
| Portage to Angra do Heroismo | 3,019.62 mi (4,859.62 km) |
| Portage to Ansiao | 3,878.17 mi (6,241.32 km) |
| Portage to Anta | 3,832.62 mi (6,168.01 km) |
