| Billingham to Alenquer | 1,134.09 mi (1,825.14 km) |
| Billingham to Alfena | 981.82 mi (1,580.08 km) |
| Billingham to Alijo | 964.08 mi (1,551.53 km) |
| Billingham to Aljustrel | 1,198.11 mi (1,928.18 km) |
| Billingham to Almada | 1,160.74 mi (1,868.04 km) |
| Billingham to Almargem | 1,151.34 mi (1,852.91 km) |
| Billingham to Almeirim | 1,118.30 mi (1,799.74 km) |
| Billingham to Amadora | 1,158.34 mi (1,864.17 km) |
| Billingham to Amarante | 973.02 mi (1,565.92 km) |
| Billingham to Amares | 953.88 mi (1,535.12 km) |
| Billingham to Amora | 1,163.74 mi (1,872.85 km) |
| Billingham to Anadia | 1,033.67 mi (1,663.52 km) |
| Billingham to Angra do Heroismo | 1,635.17 mi (2,631.56 km) |
| Billingham to Ansiao | 1,067.98 mi (1,718.75 km) |
| Billingham to Anta | 998.58 mi (1,607.07 km) |
