| Sileby to Alenquer | 1,017.47 mi (1,637.46 km) |
| Sileby to Alfena | 866.57 mi (1,394.61 km) |
| Sileby to Alijo | 845.62 mi (1,360.89 km) |
| Sileby to Aljustrel | 1,078.24 mi (1,735.25 km) |
| Sileby to Almada | 1,044.10 mi (1,680.32 km) |
| Sileby to Almargem | 1,035.20 mi (1,665.99 km) |
| Sileby to Almeirim | 1,000.75 mi (1,610.55 km) |
| Sileby to Amadora | 1,041.96 mi (1,676.88 km) |
| Sileby to Amarante | 856.36 mi (1,378.17 km) |
| Sileby to Amares | 838.59 mi (1,349.57 km) |
| Sileby to Amora | 1,046.93 mi (1,684.87 km) |
| Sileby to Anadia | 917.03 mi (1,475.81 km) |
| Sileby to Angra do Heroismo | 1,576.77 mi (2,537.56 km) |
| Sileby to Ansiao | 950.71 mi (1,530.02 km) |
| Sileby to Anta | 883.32 mi (1,421.56 km) |
