| Sidcup to Alenquer | 961.64 mi (1,547.61 km) |
| Sidcup to Alfena | 814.16 mi (1,310.26 km) |
| Sidcup to Alijo | 787.94 mi (1,268.07 km) |
| Sidcup to Aljustrel | 1,016.47 mi (1,635.85 km) |
| Sidcup to Almada | 988.07 mi (1,590.14 km) |
| Sidcup to Almargem | 980.03 mi (1,577.21 km) |
| Sidcup to Almeirim | 943.47 mi (1,518.37 km) |
| Sidcup to Amadora | 986.38 mi (1,587.42 km) |
| Sidcup to Amarante | 801.69 mi (1,290.20 km) |
| Sidcup to Amares | 786.36 mi (1,265.53 km) |
| Sidcup to Amora | 990.61 mi (1,594.23 km) |
| Sidcup to Anadia | 861.88 mi (1,387.06 km) |
| Sidcup to Angra do Heroismo | 1,584.52 mi (2,550.05 km) |
| Sidcup to Ansiao | 894.26 mi (1,439.17 km) |
| Sidcup to Anta | 830.72 mi (1,336.91 km) |
