| Thornton Heath to Alenquer | 955.47 mi (1,537.69 km) |
| Thornton Heath to Alfena | 807.67 mi (1,299.82 km) |
| Thornton Heath to Alijo | 781.87 mi (1,258.29 km) |
| Thornton Heath to Aljustrel | 1,010.83 mi (1,626.77 km) |
| Thornton Heath to Almada | 981.92 mi (1,580.26 km) |
| Thornton Heath to Almargem | 973.82 mi (1,567.21 km) |
| Thornton Heath to Almeirim | 937.42 mi (1,508.63 km) |
| Thornton Heath to Amadora | 980.20 mi (1,577.47 km) |
| Thornton Heath to Amarante | 795.37 mi (1,280.03 km) |
| Thornton Heath to Amares | 779.84 mi (1,255.04 km) |
| Thornton Heath to Amora | 984.49 mi (1,584.38 km) |
| Thornton Heath to Anadia | 855.62 mi (1,376.99 km) |
| Thornton Heath to Angra do Heroismo | 1,575.46 mi (2,535.45 km) |
| Thornton Heath to Ansiao | 888.12 mi (1,429.29 km) |
| Thornton Heath to Anta | 824.25 mi (1,326.50 km) |
