| Cay to Alenquer | 2,138.11 mi (3,440.95 km) |
| Cay to Alfena | 2,085.92 mi (3,356.96 km) |
| Cay to Alijo | 2,031.53 mi (3,269.42 km) |
| Cay to Aljustrel | 2,110.70 mi (3,396.84 km) |
| Cay to Almada | 2,151.03 mi (3,461.74 km) |
| Cay to Almargem | 2,154.45 mi (3,467.26 km) |
| Cay to Almeirim | 2,114.99 mi (3,403.75 km) |
| Cay to Amadora | 2,154.17 mi (3,466.80 km) |
| Cay to Amarante | 2,062.06 mi (3,318.56 km) |
| Cay to Amares | 2,072.50 mi (3,335.36 km) |
| Cay to Amora | 2,149.77 mi (3,459.73 km) |
| Cay to Anadia | 2,089.74 mi (3,363.12 km) |
| Cay to Angra do Heroismo | 3,087.99 mi (4,969.64 km) |
| Cay to Ansiao | 2,095.92 mi (3,373.06 km) |
| Cay to Anta | 2,093.39 mi (3,368.99 km) |
