| Harrow Weald to Alenquer | 962.81 mi (1,549.49 km) |
| Harrow Weald to Alfena | 814.29 mi (1,310.47 km) |
| Harrow Weald to Alijo | 789.44 mi (1,270.49 km) |
| Harrow Weald to Aljustrel | 1,019.28 mi (1,640.37 km) |
| Harrow Weald to Almada | 989.31 mi (1,592.14 km) |
| Harrow Weald to Almargem | 981.04 mi (1,578.83 km) |
| Harrow Weald to Almeirim | 945.01 mi (1,520.85 km) |
| Harrow Weald to Amadora | 987.50 mi (1,589.22 km) |
| Harrow Weald to Amarante | 802.40 mi (1,291.34 km) |
| Harrow Weald to Amares | 786.41 mi (1,265.60 km) |
| Harrow Weald to Amora | 991.92 mi (1,596.35 km) |
| Harrow Weald to Anadia | 862.78 mi (1,388.50 km) |
| Harrow Weald to Angra do Heroismo | 1,572.05 mi (2,529.97 km) |
| Harrow Weald to Ansiao | 895.53 mi (1,441.22 km) |
| Harrow Weald to Anta | 830.91 mi (1,337.23 km) |
